id:A110329 - OEIS Search Results

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Diagonal sums of a number triangle related to the Pell numbers.

+0
2

1, 2, 11, 76, 727, 8694, 125221, 2107448, 40577501, 879557050, 21193809151, 561950634852, 16258832340451, 509717865337646, 17211690137010377, 622780718533047664, 24039198822957409081, 985985136339748008498 (list; graph; listen)

	OFFSET	`0,2`
	COMMENT	`Diagonal sums of A110327.`
	FORMULA	`a(n)=sum{k=0..floor(n/2), (n-k)!*Pell(n-2k+1)/k!}`
	CROSSREFS	`Cf. A000129.` `Sequence in context: A055085 A118802 A053481 this_sequence A006766 A120380 A079266` `Adjacent sequences: A110326 A110327 A110328 this_sequence A110330 A110331 A110332`
	KEYWORD	`easy,nonn`
	AUTHOR	`Paul Barry (pbarry(AT)wit.ie), Jul 20 2005`

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Last modified November 24 23:16 EST 2009. Contains 167481 sequences.

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