id:A107871 - OEIS Search Results

Search: id:A107871

Displaying 1-1 of 1 results found.

page 1

Column 0 of triangle A107870; a(n) = C( n*(n-1)/2 + n+2, n).

+0
3

1, 3, 10, 56, 495, 6188, 100947, 2035800, 48903492, 1362649145, 43183019880, 1533058025824, 60246643120300, 2595612872743443, 121623751733457400, 6156937298378625264, 334817778672726215400, 19463553270556728904725 (list; graph; listen)

	OFFSET	`0,2`
	PROGRAM	`(PARI) a(n)=binomial(n*(n-1)/2+n+2, n)`
	CROSSREFS	`Cf. A107870, A107872.` `Sequence in context: A081721 A013009 A002218 this_sequence A111270 A112101 A159321` `Adjacent sequences: A107868 A107869 A107870 this_sequence A107872 A107873 A107874`
	KEYWORD	`nonn`
	AUTHOR	`Paul D. Hanna (pauldhanna(AT)juno.com), Jun 04 2005`

page 1

Search completed in 0.002 seconds

Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

AT&T Labs Research