cp's OEIS Frontend

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.

A172985 Triangle T(n,m) = A049614(n)/ (A049614(m)*A049614(n-m)) read by rows.

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%I A172985 #2 Mar 30 2012 17:34:38
%S A172985 1,1,1,1,1,1,1,1,1,1,1,4,4,4,1,1,1,4,4,1,1,1,6,6,24,6,6,1,1,1,6,6,6,6,
%T A172985 1,1,1,8,8,48,12,48,8,8,1,1,9,72,72,108,108,72,72,9,1,1,10,90,720,180,
%U A172985 1080,180,720,90,10,1,1,1,10,90,180,180,180,180,90,10,1,1,1,12,12,120,270
%N A172985 Triangle T(n,m) = A049614(n)/ (A049614(m)*A049614(n-m)) read by rows.
%C A172985 Row sums are: 1, 2, 3, 4, 14, 12, 50, 28, 142, 524, 3082,...
%e A172985 1;
%e A172985 1, 1;
%e A172985 1, 1, 1;
%e A172985 1, 1, 1, 1;
%e A172985 1, 4, 4, 4, 1;
%e A172985 1, 1, 4, 4, 1, 1;
%e A172985 1, 6, 6, 24, 6, 6, 1;
%e A172985 1, 1, 6, 6, 6, 6, 1, 1;
%e A172985 1, 8, 8, 48, 12, 48, 8, 8, 1;
%e A172985 1, 9, 72, 72, 108, 108, 72, 72, 9, 1;
%e A172985 1, 10, 90, 720, 180, 1080, 180, 720, 90, 10, 1;
%t A172985 c[n_] := Product[If[i == 0, 1, If[PrimeQ[i], 1, i]], {i, 0, n}];
%t A172985 t[n_, m_] := c[n]/(c[m]*c[n - m]);
%t A172985 Table[Table[t[n, m], {m, 0, n}], {n, 0, 10}];
%t A172985 Flatten[%]
%K A172985 nonn,tabl,easy
%O A172985 0,12
%A A172985 _Roger L. Bagula_, Feb 06 2010
%E A172985 Definition simplified by the Assoc. Editors of the OEIS, Mar 05 2010