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 A131332 #14 Jun 05 2023 21:20:22 %S A131332 1,0,1,1,0,1,1,0,1,1,2,-1,2,1,1,3,-2,3,1,2,1,5,-4,5,0,4,2,1,8,-7,8,-2, %T A131332 7,3,3,1,13,-12,13,-6,12,3,7,3,1,21,-20,21,-13,20,1,14,6,4,1,34,-33, %U A131332 34,-25,33,-5,26,9,11,4,1,55,-54,55,-45,54,-18,46,10,25,10,5,1,89,-88,89,-78,88,-43,79,5,51,19,16,5,1 %N A131332 Triangle read by rows: A065941 * A097807. %C A131332 Row sums = Fibonacci numbers: (1, 1, 2, 3, 5, 8, ...). %F A131332 A065941 * A000012(signed by columns, + - + - ...). %e A131332 First few rows of the triangle are: %e A131332 1; %e A131332 0, 1; %e A131332 1, 0, 1; %e A131332 1, 0, 1, 1; %e A131332 2, -1, 2, 1, 1; %e A131332 3, -2, 3, 1, 2, 1; %e A131332 5, -4, 5, 0, 4, 2, 1; %e A131332 8, -7, 8, -2, 7, 3, 3, 1; %e A131332 ... %Y A131332 Cf. A097807, A131333, A131334, A131335, A131336. %K A131332 tabl,sign %O A131332 1,11 %A A131332 _Gary W. Adamson_, Jun 29 2007 %E A131332 a(47) = -20 corrected, name edited and more terms from _Georg Fischer_, Jun 05 2023