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 A039803 #23 Feb 27 2021 07:11:24
%S A039803 1,-1,-1,0,0,2,1,1,0,-1,-1,-2,-3,-3,-2,-2,0,1,3,4,6,7,9,8,10,9,8,6,3,
%T A039803 -2,-5,-10,-16,-20,-27,-32,-37,-40,-44,-43,-47,-42,-42,-34,-30,-18,
%U A039803 -12,7,17,39,53,76,92,118,133,158,175,196,210,226,237,244
%N A039803 Column 4 of inverse partition triangle A038498.
%H A039803 David A. Corneth, <a href="/A039803/b039803.txt">Table of n, a(n) for n = 4..2003</a>
%o A039803 (PARI) first(n) = { my(m = matrix(n + 4, n + 4)); for(i = 2, n + 4, m[i, i] = 1; ); for(k = 2, n + 4, for(i = k + 1, n + 4, m[i, k] = m[i - (k-1), k] + m[i-1,k-1] ) ); m = matrix(n + 3, n + 3, i, j, m[i + 1, j + 1])^-1; vector(n, i, m[i + 3, 4]) } \\ _David A. Corneth_, Feb 27 2021
%Y A039803 Cf. A038498, A039800, A039801, A039802, A039804.
%K A039803 sign,look
%O A039803 4,6
%A A039803 _Christian G. Bower_, Feb 15 1999
%E A039803 a(63) onward corrected by _Sean A. Irvine_, Feb 27 2021