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 A326717 #5 Jul 21 2019 09:13:52
%S A326717 1,0,1,0,127,126,0,255256,381381,126126,0,2979852651,5447453786,
%T A326717 2956465512,488864376,0,127156445503275,264284637872750,
%U A326717 184292523727620,52359004217520,5194672859376
%N A326717 Coefficients of polynomials related to ordered set partitions. Triangle read by rows, T_{m}(n, k) for m = 5 and 0 <= k <= n.
%F A326717 T(n, k) = T_{5}(n, k) where T_{m}(n, k) is defined in A326477.
%e A326717 Triangle starts:
%e A326717 [0] [1]
%e A326717 [1] [0, 1]
%e A326717 [2] [0, 127, 126]
%e A326717 [3] [0, 255256, 381381, 126126]
%e A326717 [4] [0, 2979852651, 5447453786, 2956465512, 488864376]
%e A326717 [5] [0, 127156445503275, 264284637872750, 184292523727620, 52359004217520, 5194672859376]
%e A326717 [6] [0, 15160169962750251082, 34544220081315967665, 28276496764200664980, 10634436034307385300, 1865368063755476280, 123378675083039376]
%p A326717 # See A326477.
%Y A326717 Row sums A243666. Main diagonal A025037.
%Y A326717 A129062 (m=1, associated with A131689), A326477 (m=2, associated with A241171), A326587 (m=3, associated with A278073), A326585 (m=4, associated with A278074), this sequence (m=5).
%K A326717 nonn,tabl
%O A326717 0,5
%A A326717 _Peter Luschny_, Jul 21 2019