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 A038200 #17 Jan 05 2025 19:51:35
%S A038200 1,0,-1,3,-8,21,-54,134,-318,720,-1560,3259,-6641,13391,-27107,55657,
%T A038200 -116244,245823,-521738,1101566,-2299215,4730990,-9601095,19273729,
%U A038200 -38446742,76598275,-153119606,308061214,-624460449,1274268038,-2611866713,5362888620,-11003127203,22516189988
%N A038200 Row sums of triangle K(m, n), inverse to triangle T(m,n) in A020921.
%C A038200 The triangle K is A126713.
%H A038200 Temba Shonhiwa, <a href="https://web.archive.org/web/2024*/https://www.fq.math.ca/Scanned/37-1/shonhiwa.pdf">A Generalization of the Euler and Jordan Totient Functions</a>, Fib. Quart., 37 (1999), 67-76.
%H A038200 N. J. A. Sloane, <a href="/transforms.txt">Transforms</a>
%F A038200 Inverse binomial transform of tau(n) = A000005(n): Sum_{k=0..n} (-1)^(n-k)*binomial(n, k)*A000005(k). - _Vladeta Jovovic_, Oct 29 2002
%F A038200 E.g.f.: exp(-x)*Sum_{k>=1} d(k)*x^k/k!. - _Ilya Gutkovskiy_, Nov 26 2017
%Y A038200 Cf. A126713, A020921.
%K A038200 sign
%O A038200 1,4
%A A038200 Temba Shonhiwa (Temba(AT)maths.uz.ac.zw)
%E A038200 Better description from Michael Somos