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Search: id:A097819
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A097819 E.g.f. exp(3x)/(1-4x). +0
2
1, 7, 65, 807, 12993, 260103, 6243201, 174811815, 5593984641, 201383466759, 8055338729409, 354434904271143, 17012875405546305, 884669521090002183, 49541493181044905217, 2972489590862708661927, 190239333815213397410049 (list; graph; listen)
OFFSET

0,2

COMMENT

Third binomial transform of n!4^n.

FORMULA

a(n)=4*a(n-1)+3^n, n>0, a(0)=1

CROSSREFS

Cf. A010844, A097817.

Sequence in context: A051550 A085283 A069015 this_sequence A109779 A065097 A122705

Adjacent sequences: A097816 A097817 A097818 this_sequence A097820 A097821 A097822

KEYWORD

easy,nonn

AUTHOR

Paul Barry (pbarry(AT)wit.ie), Aug 26 2004

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Last modified September 6 00:03 EDT 2008. Contains 143485 sequences.


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