cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A332692 a(n) = n! * Laguerre(n, 2*n).

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%I A332692 #12 Feb 05 2021 08:48:25
%S A332692 1,-1,2,6,-232,4120,-61488,740432,-3220096,-224705664,11713068800,
%T A332692 -397487915264,10466018491392,-176186211195904,-2178925657151488,
%U A332692 399827849856768000,-24748326426744881152,1112888620945558700032,-36293785214959525625856,408738923015995616067584
%N A332692 a(n) = n! * Laguerre(n, 2*n).
%H A332692 Vaclav Kotesovec, <a href="/A332692/b332692.txt">Table of n, a(n) for n = 0..350</a>
%t A332692 Table[n! * LaguerreL[n, 2*n], {n, 0, 25}]
%t A332692 Flatten[{1, Table[n!*Sum[Binomial[n, k] * (-1)^k * 2^k * n^k / k!, {k, 0, n}], {n, 1, 25}]}]
%t A332692 Table[n! * Hypergeometric1F1[-n, 1, 2*n], {n, 0, 25}]
%o A332692 (PARI) a(n) = n!*pollaguerre(n, 0, 2*n); \\ _Michel Marcus_, Feb 05 2021
%Y A332692 Cf. A277423, A332693, A332679, A332694, A332695.
%Y A332692 Cf. A277391, A295406.
%K A332692 sign
%O A332692 0,3
%A A332692 _Vaclav Kotesovec_, Feb 20 2020