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 A212672 #8 Feb 20 2024 13:18:51 %S A212672 1,1,2,2,4,24,17280,6270566400,40146509439381484339200000, %T A212672 10648976440273061914760324802543763313620156416000000000000 %N A212672 Partial products of A212671. %H A212672 I. J. Good, <a href="https://doi.org/10.1016/0097-3165(71)90004-5">The factorization of a sum of matrices and the multivariate cumulants of a set of quadratic expressions</a>, J. Combinatorial Theory Ser. A 11 1971 27--37. MR0274311 (43 #76). See page 30. %Y A212672 Cf. A001037, A212659, A212671. %K A212672 nonn %O A212672 0,3 %A A212672 _N. J. A. Sloane_, May 23 2012