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 A029623 #9 Jul 08 2015 06:34:02 %S A029623 2,2,8,2,2,14,26,24,2,40,50,2,20,90,48,2,2,26,100,224,322,308,196,80, %T A029623 2,126,324,546,630,504,276,2,32,450,870,1176,1134,780,120,2,1320,2046, %U A029623 2310,1914,2,38,222,792,3366,4356,4224,1650,638,168,2,260,1014,7722 %N A029623 Even numbers in (3,2)-Pascal triangle A029618. %e A029623 2; %e A029623 2; %e A029623 8,2; %e A029623 2; %e A029623 14,26,24,2; %e A029623 40,50,2; %e A029623 20,90,48,2; %e A029623 2; %e A029623 26,100,224,322,308,196,80,2; %e A029623 126,324,546,630,504,276,2; %e A029623 32,450,870,1176,1134,780,120,2; %e A029623 1320,2046,2310,1914,2; %p A029623 for n from 0 to 12 do %p A029623 for k from 0 to n do %p A029623 a := A029618(n,k) ; %p A029623 if type(a,'even') then %p A029623 printf("%d,",a) ; %p A029623 end if; %p A029623 end do: %p A029623 printf("\n") ; %p A029623 end do: # _R. J. Mathar_, Jul 08 2015 %K A029623 nonn,easy,tabf %O A029623 0,1 %A A029623 _Mohammad K. Azarian_