A020045 - OEIS

This site is supported by donations to The OEIS Foundation.

A020045

Nearest integer to GAMMA(n+1/2)/GAMMA(1/2).

1, 1, 1, 2, 7, 30, 162, 1056, 7918, 67304, 639384, 6713531, 77205601, 965070017, 13028445232, 188912455860, 2928143065834, 48314360586264, 845501310259627, 15641774239803107, 305014597676160594, 6252799252361292173 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,4`
	FORMULA	`Also nearest integer (where .5 is rounded up) to (2n)!/(n!*2^(2n)) or A001813(n)/A000302(n). - Gerald McGarvey (gerald.mcgarvey(AT)comcast.net), Jan 20 2005`
	MAPLE	`Digits := 64:f := proc(n, x) round(GAMMA(n+x)/GAMMA(x)); end;`
	CROSSREFS	`Cf. A001813 A000302.` `Sequence in context: A088128 A001053 A124552 * A020135 A193353 A102158` `Adjacent sequences: A020042 A020043 A020044 * A020046 A020047 A020048`
	KEYWORD	`nonn`
	AUTHOR	`Simon Plouffe (simon.plouffe(AT)gmail.com)`

Content is available under The OEIS End-User License Agreement .

Last modified February 17 13:28 EST 2012. Contains 206031 sequences.