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A170749 G.f.: (1+x)/(1-29*x). 50
1, 30, 870, 25230, 731670, 21218430, 615334470, 17844699630, 517496289270, 15007392388830, 435214379276070, 12621216999006030, 366015292971174870, 10614443496164071230, 307818861388758065670, 8926746980273983904430, 258875662427945533228470 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..16.

FORMULA

a(n)= Sum_{k, 0<=k<=n} A097805(n,k)*(-1)^(n-k)*30^k. [From Philippe DELEHAM, Dec 04 2009]

a(0) = 1; for n>0, a(n) = 30*29^(n-1). [From Vincenzo Librandi, Dec 05 2009]

CROSSREFS

Sequence in context: A170615 A170663 A170711 * A218732 A158580 A171335

Adjacent sequences:  A170746 A170747 A170748 * A170750 A170751 A170752

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Dec 04 2009

STATUS

approved

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Last modified May 19 01:49 EDT 2013. Contains 225428 sequences.