A051036 - OEIS

A051036

a(n) = binomial(n, floor(n/4)).

1, 1, 1, 1, 4, 5, 6, 7, 28, 36, 45, 55, 220, 286, 364, 455, 1820, 2380, 3060, 3876, 15504, 20349, 26334, 33649, 134596, 177100, 230230, 296010, 1184040, 1560780, 2035800, 2629575, 10518300, 13884156, 18156204, 23535820, 94143280, 124403620 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`0,5`
	LINKS	`Seiichi Manyama, Table of n, a(n) for n = 0..1000`
	MATHEMATICA	`a[n_] := Binomial[n, Floor[n/4]]; Array[a, 50, 0] (* Enrique Pérez Herrero, Mar 06 2012 *)`
	PROG	`(Python)` `from math import comb` `def A051036(n): return comb(n, n>>2) # Chai Wah Wu, Feb 02 2023`
	CROSSREFS	`Cf. A001405, A051033, A051052, A051053, A062947.` `Sequence in context: A071177 A010754 A187807 * A063673 A105737 A335186` `Adjacent sequences: A051033 A051034 A051035 * A051037 A051038 A051039`
	KEYWORD	`nonn,easy`
	AUTHOR	`N. J. A. Sloane`
	STATUS	`approved`