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 A375872 #14 Sep 01 2024 09:35:33 %S A375872 1,4,44,836,22980,832888,37615340,2038258804,128989219860, %T A375872 9343113460308,762596057754748,69273095355130488,6932765720797549924, %U A375872 758009268677055714964,89907747171907593677068,11498798927333436173636612,1577528093912610651931113908 %N A375872 E.g.f. satisfies A(x) = exp( 4 * (exp(x*A(x)^(3/4)) - 1) ). %F A375872 E.g.f.: B(x)^4, where B(x) is the e.g.f. of A349683. %F A375872 a(n) = 4 * Sum_{k=0..n} (3*n+4)^(k-1) * Stirling2(n,k). %o A375872 (PARI) a(n) = 4*sum(k=0, n, (3*n+4)^(k-1)*stirling(n, k, 2)); %Y A375872 Cf. A349683, A375870, A375871. %Y A375872 Cf. A078944, A370058. %K A375872 nonn %O A375872 0,2 %A A375872 _Seiichi Manyama_, Sep 01 2024