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A103142 Generalized Pell numbers. +0
2
1, 2, 5, 13, 34, 88, 228, 591, 1532, 3971, 10293, 26680, 69156, 179256, 464641, 1204374, 3121801, 8091873, 20974562, 54367172, 140922580, 365278767, 946821848, 2454212215, 6361447625, 16489208080, 42740897848, 110786663616 (list; graph; listen)
OFFSET

0,2

COMMENT

Row sums of generalized Pascal matrix A103141.

FORMULA

G.f.: 1/(1-2x-x^2-x^3-x^4)

CROSSREFS

Cf. A077939, A000129.

Adjacent sequences: A103139 A103140 A103141 this_sequence A103143 A103144 A103145

Sequence in context: A104589 A122024 A027931 this_sequence A112844 A027933 A011783

KEYWORD

easy,nonn

AUTHOR

Paul Barry (pbarry(AT)wit.ie), Jan 24 2005

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Last modified May 16 01:24 EDT 2008. Contains 139630 sequences.


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