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 A299035 a(n) = [x^n] Product_{k=1..n} 1/(1-k^k*x). 3
 1, 1, 21, 23980, 4896624249, 327969374429859111, 11123496833223144303532943536, 273486179312859032380857823231575174373792, 6620886635410516590847876477644821623913997428738363459941 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,3 LINKS Seiichi Manyama, Table of n, a(n) for n = 0..26 FORMULA a(n) ~ n^(n^2). - Vaclav Kotesovec, Feb 02 2018 MATHEMATICA Table[SeriesCoefficient[Product[1/(1 - k^k*x), {k, 1, n}], {x, 0, n}], {n, 0, 10}] (* Vaclav Kotesovec, Feb 02 2018 *) CROSSREFS Cf. A002109. Cf. A007820, A298851, A299036. Sequence in context: A172724 A001167 A250066 * A189648 A283841 A100414 Adjacent sequences:  A299032 A299033 A299034 * A299036 A299037 A299038 KEYWORD nonn AUTHOR Seiichi Manyama, Feb 01 2018 STATUS approved

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Last modified January 26 09:09 EST 2022. Contains 350597 sequences. (Running on oeis4.)