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 A167685 #5 Aug 11 2015 04:51:13 %S A167685 1,1,1,2,4,2,5,14,13,4,14,48,62,36,8,42,165,264,217,92,16,132,572, %T A167685 1066,1104,670,224,32,429,2002,4186,5130,3965,1912,528,64,1430,7072, %U A167685 16184,22576,20858,12904,5168,1216,128 %N A167685 Triangle read by rows given by [1,1,1,1,1,1,1,1,1,1,...] DELTA [1,1,0,0,0,0,0,0,0,0,0,...] where DELTA is the operator defined in A084938. %F A167685 T(n,0)= A000108(n). %e A167685 Triangle begins : %e A167685 1 ; %e A167685 1,1 ; %e A167685 2,4,2 ; %e A167685 5,14,13,4 ; %e A167685 14,48,62,36,8 ; %e A167685 42,165,264,217,92,16 ; ... %Y A167685 Cf. A000108, A039599, A167656, %K A167685 nonn,tabl %O A167685 0,4 %A A167685 _Philippe Deléham_, Nov 09 2009