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 A104797 #4 Apr 30 2014 01:30:32 %S A104797 1,3,1,7,3,1,14,7,3,1,26,14,7,3,1,46,26,14,7,3,1,79,46,26,14,7,3,1, %T A104797 133,79,46,26,14,7,3,1,221,133,79,46,26,14,7,3,1,364,221,133,79,46,26, %U A104797 14,7,3,1,596,364,221,133,79,46,26,14,7,3,1,972,596,364,221,133,79,46,26 %N A104797 Triangle T(n,k) = Fib(n-k+4)-n-k-3, n>=1, 0<=k<n, read by rows. %C A104797 Repeatedly writing the sequence A001924 backwards. %e A104797 First few rows of the triangle are: %e A104797 1; %e A104797 3, 1; %e A104797 7, 3, 1; %e A104797 14, 7, 3, 1; %e A104797 26, 14, 7, 3, 1; %e A104797 46, 26, 14, 7, 3, 1; %e A104797 ... %Y A104797 Row sums are in A014162. %Y A104797 Cf. A104732. %K A104797 nonn,tabl %O A104797 1,2 %A A104797 _Gary W. Adamson_, Mar 26 2005 %E A104797 Edited by _Ralf Stephan_, Apr 05 2009