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.
%I A331770 #19 Jul 29 2023 03:29:08
%S A331770 1008,21168,127008,465696,1297296,3027024,6237504,11721024,20511792,
%T A331770 33918192,53555040,81375840,119705040,171270288,239234688,327229056,
%U A331770 439384176,580363056,755393184,970298784,1231533072,1546210512,1922139072,2367852480,2892642480,3506591088,4220602848
%N A331770 El Gradechi's hybrid coefficients alpha^{6,6}_{2n}, negated.
%C A331770 See El Gradechi (2013) for precise definition.
%H A331770 Robin Visser, <a href="/A331770/b331770.txt">Table of n, a(n) for n = 0..10000</a>
%H A331770 Amine M. El Gradechi, <a href="https://doi.org/10.1007/s11139-012-9415-5">The Lie theory of certain modular form and arithmetic identities</a>, The Ramanujan Journal 31.3 (2013): 397-433.
%F A331770 a(n) = 1008 * binomial(5 + 2*n, 5) = 1008 * A002299(n). - _Robin Visser_, Jul 24 2023
%o A331770 (Magma) [1008*Binomial(5 + 2*n, 5) : n in [0..100]]; // _Robin Visser_, Jul 24 2023
%o A331770 (PARI) a(n) = 1008*binomial(5 + 2*n, 5); \\ _Robin Visser_, Jul 24 2023
%Y A331770 Cf. A002299, A331768, A331769.
%K A331770 nonn
%O A331770 0,1
%A A331770 _N. J. A. Sloane_, Feb 08 2020
%E A331770 More terms from _Robin Visser_, Jul 24 2023