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.

A372346 a(n) = Sum_{j=0..n} p(n - j, j) where p(n, x) = Sum_{k=0..n} k! * Stirling2(n, k) * x^k. Row sums of A344499.

Table of values

n a(n)
0 1
1 1
2 2
3 6
4 27
5 175
6 1532
7 17276
8 243093
9 4165261
10 85133686
11 2039546786
12 56447550543
13 1783865468187
14 63766726231792
15 2558290237404920
16 114418196763735113
17 5670168958036693977
18 309630356618418661738
19 18536683645526372648446
20 1211038603734731649106307
21 85983731724631359047504967

List of values

[1, 1, 2, 6, 27, 175, 1532, 17276, 243093, 4165261, 85133686, 2039546786, 56447550543, 1783865468187, 63766726231792, 2558290237404920, 114418196763735113, 5670168958036693977, 309630356618418661738, 18536683645526372648446, 1211038603734731649106307, 85983731724631359047504967]