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Search: id:A141628
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| A141628 |
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E.g.f. satisfies: A(x) = exp(x*A(tan(x))). |
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+0
1
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| 1, 1, 3, 16, 133, 1496, 21343, 371064, 7633641, 181891072, 4937228411, 150669126400, 5114378969965, 191400122127488, 7838565428874391, 349073700821172736, 16811407320683479633, 871413633401197096960
(list; graph; listen)
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OFFSET
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0,3
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MAPLE
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A:= proc(n) option remember; if n=0 then 1 else unapply (convert (series (exp (x*A(n-1)(tan(x))), x, n+1), polynom), x) fi end: a:= n-> coeff (A(n)(x), x, n)*n!: seq (a(n), n=0..19);
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CROSSREFS
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Sequence in context: A121673 A051921 A023998 this_sequence A048802 A119392 A129043
Adjacent sequences: A141625 A141626 A141627 this_sequence A141629 A141630 A141631
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KEYWORD
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nonn
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AUTHOR
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Alois P. Heinz (heinz(AT)hs-heilbronn.de), Aug 24 2008
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