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A035049
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E.g.f. satisfies A(x)=x(1+A(A(x))), A(0)=0.
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2
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1, 2, 12, 144, 2760, 74880, 2676240, 120234240, 6571393920, 426547296000, 32283270835200, 2808028566604800, 277433852555059200, 30836115140589158400, 3824551325912308992000, 525674251444773150720000
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,2
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MAPLE
| A := proc(n) option remember; local T; if n=0 then 0 else T:= A(n-1); unapply (convert (series (x*(1+T(T(x))), x, n+1), polynom), x) fi end: a:= n-> coeff(A(n)(x), x, n)*n!: seq (a(n), n=1..16); [From Alois P. Heinz (heinz(AT)hs-heilbronn.de), Aug 23 2008]
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CROSSREFS
| Cf. A001028, A030266.
Sequence in context: A067601 A052740 A052742 * A010790 A086928 A001927
Adjacent sequences: A035046 A035047 A035048 * A035050 A035051 A035052
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KEYWORD
| nonn,eigen
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AUTHOR
| Christian G. Bower (bowerc(AT)usa.net), Oct 15 1998.
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EXTENSIONS
| More terms from Alois P. Heinz (heinz(AT)hs-heilbronn.de), Aug 23 2008
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