A123621 - OEIS

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A123621

Greatest k <= n/2 such that n divides binomial(n,k).

0, 1, 1, 1, 2, 1, 3, 3, 4, 4, 5, 6, 6, 5, 7, 7, 8, 8, 9, 9, 10, 10, 11, 11, 12, 12, 13, 13, 14, 15, 15, 15, 16, 16, 17, 17, 18, 18, 19, 19, 20, 20, 21, 21, 22, 22, 23, 23, 24, 24, 25, 25, 26, 26, 27, 28, 28, 28, 29, 29, 30, 29, 31, 31, 32, 32, 33, 33, 34, 34, 35, 35, 36, 36, 37, 37 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,5`
	COMMENTS	`A007318(n,a(n)) mod n = 0;` `a(p) = floor(p/2) for primes p.`
	LINKS	`R. Zumkeller, Table of n, a(n) for n = 1..1000` `Index entries for triangles and arrays related to Pascal's triangle` `Eric Weisstein's World of Mathematics, Binomial Coefficient`
	CROSSREFS	`Sequence in context: A173989 A093068 A097357 * A151662 A049786 A187498` `Adjacent sequences: A123618 A123619 A123620 * A123622 A123623 A123624`
	KEYWORD	`nonn`
	AUTHOR	`Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Oct 03 2006`

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Last modified February 14 08:22 EST 2012. Contains 205612 sequences.