A027969 - OEIS

This site is supported by donations to The OEIS Foundation.

A027969

T(n,2n-7), T given by A027960.

3, 7, 18, 47, 120, 291, 661, 1404, 2801, 5283, 9484, 16305, 26990, 43215, 67191, 101782, 150639, 218351, 310614, 434419, 598260, 812363, 1088937, 1442448, 1889917, 2451243, 3149552, 4011573, 5068042, 6354135, 7909931 (list; graph; refs; listen; history; internal format)

	OFFSET	`4,1`
	FORMULA	`G.f.: [x^4(3-2x)(1-x+x^2)*(1-4x+7x^2-4x^3+x^4)]/(1-x)^8. Differences of A027970. - Ralf Stephan, Feb 07 2004`
	CROSSREFS	`A column of triangle A027011.` `Sequence in context: A094297 A026107 A173765 * A027971 A018028 A045994` `Adjacent sequences: A027966 A027967 A027968 * A027970 A027971 A027972`
	KEYWORD	`nonn`
	AUTHOR	`Clark Kimberling (ck6(AT)evansville.edu)`

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

Last modified February 16 21:04 EST 2012. Contains 205969 sequences.