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 A128586 #8 Jun 01 2023 15:37:11 %S A128586 1,0,1,-1,0,2,2,-3,-3,3,-3,8,0,-7,5,4,-15,10,5,-17,8,-5,24,-30,15,27, %T A128586 -35,13,6,-35,63,-70,-7,77,-70,21,-7,48,-112,182,-98,-84,196,-134,34, %U A128586 8,-63,180,-378,378,-84,-336,450,-251,55,-9,80,-270,690,-966,714,210,-990,980,-461,89 %N A128586 Triangle read by rows: A007318^(-1) * A128540. %C A128586 Row sums = A128587: (1, 1, 1, -1, 3, -5, 9, -15, 25, -41, ...). %F A128586 Inverse binomial transform of A128540. %F A128586 Matrix product A130595 * A128540. - _Georg Fischer_, Jun 01 2023 %e A128586 First few rows of the triangle: %e A128586 1; %e A128586 0, 1; %e A128586 -1, 0, 2; %e A128586 2, -3, -3, 3; %e A128586 -3, 8, 0, -7, 5; %e A128586 4, -15, 10, 5, -17, 8; %e A128586 ... %Y A128586 Cf. A007318, A128540, A128587, A128588, A130595. %K A128586 tabl,sign %O A128586 1,6 %A A128586 _Gary W. Adamson_, Mar 11 2007 %E A128586 a(33) corrected, a(42)=-84 inserted and more terms from _Georg Fischer_, Jun 01 2023