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Search: id:A144692
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| A144692 |
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G.f.: A(x) = x/Series_Reversion[x*G(x)] where A(x*G(x)) = G(x) = g.f. of A144691. |
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+0
3
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| 1, 1, 1, 0, 17, 0, 408, 0, 69473, 0, 6018928, 0, 1363916728, 0, 190375379264, 0
(list; graph; listen)
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OFFSET
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0,5
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COMMENT
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Do the zeros continue to appear every other term?
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EXAMPLE
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G.f.: A(x) = 1 + x + x^2 + 17*x^4 + 408*x^6 + 69473*x^8 + 6018928*x^10 +...
satisfies: A(x*G(x)) = G(x) = g.f. of A144691 where
G(x) = 1 + x + 2*x^2 + 4*x^3 + 26*x^4 + 106*x^5 + 816*x^6 + 4292*x^7 +...
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CROSSREFS
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Cf. A144691.
Sequence in context: A058418 A059933 A002488 this_sequence A088469 A089170 A040292
Adjacent sequences: A144689 A144690 A144691 this_sequence A144693 A144694 A144695
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KEYWORD
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more,nonn
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AUTHOR
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Paul D. Hanna (pauldhanna(AT)juno.com), Oct 10 2008
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