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A144636
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Column 1 of triangle in A144633.
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4
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0, 1, -1, 2, -5, 10, 35, -910, 11935, -134750, 1376375, -11761750, 48923875, 1209057850, -48943019125, 1218200233250, -25136059573625, 441933961719250, -5922915844470625, 18956805373756250, 2611377778731596875
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,4
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FORMULA
| E.g.f.: A(x)=B(x)-1/B(x)-1 where B(x)=(2+3*x+(5+12*x+9*x^2)^(1/2))^(1/3). [From Vladeta Jovovic (vladeta(AT)eunet.yu), Jan 24 2009]
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CROSSREFS
| Sequence in context: A089073 A138190 A056300 * A018418 A155217 A004143
Adjacent sequences: A144633 A144634 A144635 * A144637 A144638 A144639
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KEYWORD
| sign
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com), Jan 23 2009
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EXTENSIONS
| More terms from Vladeta Jovovic (vladeta(AT)eunet.yu), Jan 24 2009
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