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 A115346 #18 Nov 20 2016 04:00:50 %S A115346 0,0,1,0,1,2,0,1,2,4,0,1,2,4,7,0,1,2,4,7,12,0,1,2,4,7,12,20,0,1,2,4,7, %T A115346 12,20,33,0,1,2,4,7,12,20,33,54,0,1,2,4,7,12,20,33,54,88,0,1,2,4,7,12, %U A115346 20,33,54,88,143,0,1,2,4,7,12,20,33,54,88,143,232 %N A115346 Triangle read by rows: T(n,k) = Fibonacci(k+2) - 1. %e A115346 Triangle starts: %e A115346 0, %e A115346 0, 1, %e A115346 0, 1, 2, %e A115346 0, 1, 2, 4, %e A115346 0, 1, 2, 4, 7, %e A115346 0, 1, 2, 4, 7, 12, %e A115346 ... %Y A115346 Cf. A000071, A000045. %K A115346 nonn,tabl,easy,less %O A115346 0,6 %A A115346 _Roger L. Bagula_, Mar 07 2006 %E A115346 Edited by _Joerg Arndt_, Nov 20 2016