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Integer sequences
Results: 1364

#	Item
721	On Plimpton 322. Pythagorean numbers in Babylonian mathematics Add to Reading List Source URL: www.dwc.knaw.nl Language: English - Date: 2010-10-26 11:30:26 Diophantine equations Euclidean plane geometry Plimpton 322 Pythagorean triple Pythagorean theorem Regular number Number Prime number Divisor Mathematics Babylonian mathematics Integer sequences
722	28th International Mathematical Olympiad Havana, Cuba Day I July 10, [removed]Let pn (k) be the number of permutations of the set {1, . . . , n}, n ≥ 1, which Add to Reading List Source URL: media.hotnews.ro Language: English - Date: 2014-05-19 06:22:18 Integer sequences Algebraic number theory Factorial Permutation Integer Binomial coefficient Mathematics Combinatorics Number theory
723	38th International Mathematical Olympiad Mar del Plata, Argentina Day I July 24, [removed]In the plane the points with integer coordinates are the vertices of unit squares. Add to Reading List Source URL: media.hotnews.ro Language: English - Date: 2014-05-19 06:27:28 Summation Integer sequences Number theory Combinatorics GCD test Fibonacci number Mathematics Arithmetic Mathematical notation
724	30th International Mathematical Olympiad Braunschweig, Germany Day I 1. Prove that the set {1, 2, . . . , 1989} can be expressed as the disjoint union of subsets Ai (i = 1, 2, . . . , 117) such that: Add to Reading List Source URL: media.hotnews.ro Language: English - Date: 2014-05-19 06:22:31 Triangles Quadrilateral Triangle Integer sequences Combinatorics Geometry Mathematics Triangle geometry
725	PDF Document Add to Reading List Source URL: imo-official.org Language: English - Date: 2011-08-23 17:57:34 Generating function Integer sequences Ordinary differential equations Arithmetic Mathematical notation Summation
726	PDF Document Add to Reading List Source URL: www.math.harvard.edu Language: English - Date: 2011-10-28 12:38:05 Integer sequences Partition of a set Equivalence class Bell number General topology Order theory Semigroup theory Ext functor Topological indistinguishability Mathematics Equivalence relation Combinatorics
727	PDF Document Add to Reading List Source URL: www.math.harvard.edu Language: English - Date: 2011-09-09 10:04:01 Integer sequences Generating function Partition Arithmetic function Binomial coefficient Mathematics Mathematical analysis Combinatorics
728	PDF Document Add to Reading List Source URL: www.math.harvard.edu Language: English - Date: 2011-10-17 13:02:37 Permutations Enumerative combinatorics Abstract algebra Inclusion–exclusion principle Derangement Function Binomial coefficient First-order logic Mathematics Combinatorics Integer sequences
729	PDF Document Add to Reading List Source URL: www.epirare.eu Language: English - Date: 2014-03-17 13:22:07 Geographic information system Integer sequences Markov models
730	PDF Document Add to Reading List Source URL: www.math.harvard.edu Language: English - Date: 2011-09-09 10:04:00 Integer sequences Binomial coefficient Factorial Combination Permutation Stirling numbers of the second kind Random permutation statistics Mathematics Combinatorics Discrete mathematics

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