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.

A350260 Triangle read by rows. T(n, k) = k^n * BellPolynomial(n, 1/k) for k > 0, if k = 0 then T(n, k) = k^n.

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%I A350260 #8 Dec 30 2021 07:23:20
%S A350260 1,0,1,0,2,3,0,5,11,19,0,15,49,109,201,0,52,257,742,1657,3176,0,203,
%T A350260 1539,5815,15821,35451,69823,0,877,10299,51193,170389,447981,1007407,
%U A350260 2026249,0,4140,75905,498118,2032785,6282416,16157905,36458010,74565473
%N A350260 Triangle read by rows. T(n, k) = k^n * BellPolynomial(n, 1/k) for k > 0, if k = 0 then T(n, k) = k^n.
%e A350260 Triangle starts:
%e A350260 [0] 1
%e A350260 [1] 0,    1
%e A350260 [2] 0,    2,     3
%e A350260 [3] 0,    5,    11,     19
%e A350260 [4] 0,   15,    49,    109,     201
%e A350260 [5] 0,   52,   257,    742,    1657,    3176
%e A350260 [6] 0,  203,  1539,   5815,   15821,   35451,    69823
%e A350260 [7] 0,  877, 10299,  51193,  170389,  447981,  1007407,  2026249
%e A350260 [8] 0, 4140, 75905, 498118, 2032785, 6282416, 16157905, 36458010, 74565473
%p A350260 A350260 := (n, k) -> ifelse(k = 0, k^n, k^n * BellB(n, 1/k)):
%p A350260 seq(seq(A350260(n, k), k = 0..n), n = 0..8);
%t A350260 T[n_, k_] := If[k == 0, k^n, k^n BellB[n, 1/k]];
%t A350260 Table[T[n, k], {n, 0, 8}, {k, 0, n}] // Flatten
%Y A350260 Cf. A350256, A350257, A350258, A350259, A350261, A350262, A350263.
%Y A350260 Cf. A000110, A301419.
%K A350260 nonn,tabl
%O A350260 0,5
%A A350260 _Peter Luschny_, Dec 22 2021