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 A130831 #16 May 12 2023 09:07:41
%S A130831 1,2,1,2,2,4,1,2,2,4,2,4,4,8,2,4,4,8,4,8,8,16,1,2,2,4,2,4,4,8,2,4,4,8,
%T A130831 4,8,8,16,2,4,4,8,4,8,8,16,4,8,8,16,8,16,16,32,2,4,4,8,4,8,8,16,4,8,8,
%U A130831 16,8,16,16,32,4,8,8,16,8,16,16,32,8,16,16,32,16,32,32,64,2,4,4,8,4,8,8,16
%N A130831 Irregular triangle read by rows: row(n) contains the first A001146(n) terms of A001316.
%C A130831 The n-th row of the triangle consists of the first A001146(n) terms of A001316. - _Benjamin Heiland_, Dec 12 2011
%e A130831 Triangle begins:
%e A130831 {1, 2},
%e A130831 {1, 2, 2, 4},
%e A130831 {1, 2, 2, 4, 2, 4, 4, 8, 2, 4, 4, 8, 4, 8, 8, 16}
%e A130831 ...
%Y A130831 Cf. A001146, A060803, A130830.
%K A130831 nonn,less,tabf
%O A130831 1,2
%A A130831 _Roger L. Bagula_, Aug 20 2007
%E A130831 Edited by _N. J. A. Sloane_, Jun 07 2008
%E A130831 New name using _Benjamin Heiland_'s comment, _Joerg Arndt_, May 11 2023