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 A124553 Row 3 of table A124550; also equals the self-convolution cube of A124563, which is row 3 of table A124560. 7
 1, 3, 15, 91, 666, 5955, 65794, 901881, 15346419, 324465907, 8535776700, 279761994750, 11438401220798, 584130591952902, 37300812251856828, 2981666324471342976, 298639111371493692105, 37510558656296021069859 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,2 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. LINKS Table of n, a(n) for n=0..17. FORMULA G.f.: A(x) = [ Sum_{k>=0} y^k * R_{3k}(y) ]^3, where R_n(x) is the g.f. of row n in table A124550. CROSSREFS Cf. A124550; other rows: A124551, A124552, A124554, A124555, A124556. Sequence in context: A369161 A159928 A020018 * A369623 A366053 A369114 Adjacent sequences: A124550 A124551 A124552 * A124554 A124555 A124556 KEYWORD nonn AUTHOR Paul D. Hanna, Nov 07 2006 STATUS approved

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Last modified September 8 21:25 EDT 2024. Contains 375759 sequences. (Running on oeis4.)