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Search: id:A063030
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| A063030 |
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Reversion of y - y^2 - y^4 + y^5. |
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+0
1
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| 0, 1, 1, 2, 6, 19, 63, 220, 795, 2942, 11099, 42536, 165126, 647955, 2565946, 10241616, 41158598, 166402323, 676338003, 2761988994, 11327162406, 46631572295, 192638451780, 798316442580, 3317866307145, 13825837134096
(list; graph; listen)
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OFFSET
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0,4
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LINKS
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Index entries for reversions of series
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MATHEMATICA
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CoefficientList[InverseSeries[Series[y - y^2 - y^4 + y^5, {y, 0, 30}], x], x]
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PROGRAM
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(PARI) a(n)=if(n<1, 0, polcoeff(serreverse(x-x^2-x^4+x^5+x*O(x^n)), n))
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CROSSREFS
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Sequence in context: A001168 A119255 A071969 this_sequence A148467 A148468 A148469
Adjacent sequences: A063027 A063028 A063029 this_sequence A063031 A063032 A063033
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KEYWORD
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nonn,easy
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AUTHOR
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Olivier Gerard (olivier.gerard(AT)gmail.com), Jul 05 2001.
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