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.

A194708 Triangle read by rows: T(k,m) = number of occurrences of k in the last section of the set of partitions of (8 + m).

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%I A194708 #30 Jan 07 2024 14:14:45
%S A194708 22,7,15,6,6,10,2,5,5,10,2,3,4,5,8,1,2,2,5,4,8,1,1,2,2,4,5,7,0,1,1,2,
%T A194708 2,4,4,8,1,0,1,1,2,2,4,4,7,0,1,0,1,1,2,2,4,4,7,0,0,1,0,1,1,2,2,4,4,7,
%U A194708 0,0,0,1,0,1,1,2,2,4,4,7,0,0,0,0,1,0,1,1,2,2,4,4,7
%N A194708 Triangle read by rows: T(k,m) = number of occurrences of k in the last section of the set of partitions of (8 + m).
%C A194708 Sub-triangle of A182703 and also of A194812. Note that the sum of every row is also the number of partitions of 8. For further information see A182703 and A135010.
%H A194708 Andrew Howroyd, <a href="/A194708/b194708.txt">Table of n, a(n) for n = 1..1275</a> (rows 1..50)
%F A194708 T(k,m) = A182703(8+m,k), with T(k,m) = 0 if k > 8+m.
%F A194708 T(k,m) = A194812(8+m,k).
%e A194708 Triangle begins:
%e A194708   22,
%e A194708    7, 15,
%e A194708    6,  6, 10,
%e A194708    2,  5,  5, 10,
%e A194708    2,  3,  4,  5,  8,
%e A194708    ...
%e A194708 For k = 1 and m = 1: T(1,1) = 22 because there are 22 parts of size 1 in the last section of the set of partitions of 9, since 8 + m = 9, so a(1) = 22.
%e A194708 For k = 2 and m = 1: T(2,1) = 7 because there are seven parts of size 2 in the last section of the set of partitions of 9, since 8 + m = 9, so a(2) = 7.
%o A194708 (PARI) P(n)={my(M=matrix(n,n), d=8); M[1,1]=numbpart(d); for(m=1, n, forpart(p=m+d, for(k=1, #p, my(t=p[k]); if(t<=n && m<=t, M[t, m]++)), [2, m+d])); M}
%o A194708 { my(T=P(10)); for(n=1, #T, print(T[n, 1..n])) } \\ _Andrew Howroyd_, Feb 19 2020
%Y A194708 Always the sum of row k = p(8) = A000041(8) = 22.
%Y A194708 The first (0-10) members of this family of triangles are A023531, A129186, A194702-A194707, this sequence, A194709, A194710.
%Y A194708 Cf. A135010, A138121, A194812.
%K A194708 nonn,tabl
%O A194708 1,1
%A A194708 _Omar E. Pol_, Feb 05 2012
%E A194708 Terms a(11) and beyond from _Andrew Howroyd_, Feb 19 2020