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A132375
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Expansion of c(8x^2)/(1-xc(8x^2)), where c(x) is the g.f. of A000108 .
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2
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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; internal format)
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OFFSET
| 0,3
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COMMENTS
| Hankel transform is 8^C(n+1,2) . Series reversion of x(1+x)/(1+2x+9x^2) .
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FORMULA
| a(n) = Sum_{k, 0<=k<=n}A120730(n,k)*8^(n-k).
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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
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KEYWORD
| easy,nonn
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AUTHOR
| Philippe DELEHAM (kolotoko(AT)wanadoo.fr), Nov 10 2007
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