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 A293251 G.f.: Product_{i>0} 1/(Sum_{j>=0} j!*x^(j*i)). 4
 1, -1, -2, -3, -13, -65, -447, -3351, -28544, -269270, -2795872, -31689198, -389581679, -5165672203, -73512910689, -1117937393138, -18096787251877, -310743077434399, -5642249024063207, -108023468997424550, -2175086628366359447, -45952007357795606912 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,3 LINKS Seiichi Manyama, Table of n, a(n) for n = 0..449 FORMULA Convolution inverse of A161779. a(n) ~ -n! * (1 - 2/n - 2/n^2 - 5/n^3 - 29/n^4 - 232/n^5 - 2231/n^6 - 24745/n^7 - 308917/n^8 - 4279945/n^9 - 65179552/n^10), for coefficients see A293264. - Vaclav Kotesovec, Oct 04 2017 MATHEMATICA nmax = 30; CoefficientList[Series[Product[1/Sum[j!*x^(j*k), {j, 0, nmax}], {k, 1, nmax}], {x, 0, nmax}], x] (* Vaclav Kotesovec, Oct 04 2017 *) CROSSREFS Cf. A161779, A293259. Sequence in context: A164582 A068945 A219698 * A061912 A212433 A013167 Adjacent sequences: A293248 A293249 A293250 * A293252 A293253 A293254 KEYWORD sign AUTHOR Seiichi Manyama, Oct 04 2017 STATUS approved

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Last modified September 25 23:09 EDT 2023. Contains 365649 sequences. (Running on oeis4.)