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A132375 Expansion of c(8x^2)/(1-xc(8x^2)), where c(x) is the g.f. of A000108 . 2
1, 1, 9, 17, 153, 353, 3177, 8113, 73017, 198401, 1785609, 5060433, 45543897, 133071009, 1197639081, 3581326065, 32231934585, 98156060225, 883404542025, 2730108129937, 24570973169433, 76862217117665, 691759954058985 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

COMMENTS

Hankel transform is 8^C(n+1,2) . Series reversion of x(1+x)/(1+2x+9x^2) .

LINKS

Table of n, a(n) for n=0..22.

FORMULA

a(n) = Sum_{k, 0<=k<=n}A120730(n,k)*8^(n-k).

CROSSREFS

Cf. A000012, A001405, A126087, A128386, A121724, A128387, A121725.

Sequence in context: A177166 A073221 A110462 * A110360 A123836 A141444

Adjacent sequences:  A132372 A132373 A132374 * A132376 A132377 A132378

KEYWORD

easy,nonn

AUTHOR

Philippe Deléham, Nov 10 2007

STATUS

approved

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Last modified October 22 09:57 EDT 2018. Contains 316433 sequences. (Running on oeis4.)