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 A130830 #13 May 12 2023 09:07:51
%S A130830 1,2,3,1,2,3,2,4,6,3,6,9,1,2,3,2,4,6,3,6,9,2,4,6,4,8,12,6,12,18,3,6,9,
%T A130830 6,12,18,9,18,27,2,4,6,4,8,12,6,12,18,4,8,12,8,16,24,12,24,36,6,12,18,
%U A130830 12,24,36,18,36,54,3,6,9,6,12,18,9,18,27,6,12,18,12,24,36,18,36,54,9,18,27
%N A130830 Irregular triangle read by rows: row(n) consists of the first A011764(n-1) terms of A006047.
%e A130830 Triangle begins:
%e A130830 {1, 2, 3},
%e A130830 {1, 2, 3, 2, 4, 6, 3, 6, 9},
%e A130830 {1, 2, 3, 2, 4, 6, 3, 6, 9, 2, 4, 6, 4, 8, 12, 6, 12, 18, 3, 6, 9, 6, 12, 18, 9, 18, 27, 2, 4, 6, 4, 8, 12, 6, 12, 18, 4, 8, 12, 8, 16, 24, 12, 24, 36, 6, 12, 18, 12, 24, 36, 18, 36, 54, 3, 6, 9, 6, 12, 18, 9, 18, 27, 6, 12, 18, 12, 24, 36, 18, 36, 54, 9, 18, 27, 18, 36, 54, 27, 54, 81}, ...
%Y A130830 Cf. A011764, A115245, A130831.
%K A130830 nonn,less,tabf
%O A130830 1,2
%A A130830 _Roger L. Bagula_, Aug 20 2007
%E A130830 Edited by _N. J. A. Sloane_, Jun 07 2008