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1, 1, 2, 5, 16, 66, 348, 2321, 19437, 203554, 2661035, 43399794, 883165898, 22436796424, 712153021345, 28264751131084, 1403965520612428, 87352867349503436, 6813355443494722779, 666712967112785700169
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,3
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COMMENTS
| In table A124550, the g.f. of row n, R_n(y), simultaneously satisfies: R_n(y) = [ Sum_{k>=0} y^k * R_{n*k}(y) ]^n for n>=0.
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FORMULA
| G.f.: A(x) = Sum_{k>=0} y^k * R_{k}(y), where R_n(x) is the g.f. of row n in table A124550.
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CROSSREFS
| Cf. A124550, A124560; other rows: A124552, A124553, A124554, A124555, A124556.
Sequence in context: A007469 A091139 A084785 * A005157 A019502 A019503
Adjacent sequences: A124548 A124549 A124550 * A124552 A124553 A124554
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KEYWORD
| nonn
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AUTHOR
| Paul D. Hanna (pauldhanna(AT)juno.com), Nov 07 2006
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