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.

A069321 Stirling transform of A001563: a(0) = 1 and a(n) = Sum_{k=1..n} Stirling2(n,k)*k*k! for n >= 1.

Table of values

n a(n)
0 1
1 1
2 5
3 31
4 233
5 2071
6 21305
7 249271
8 3270713
9 47580151
10 760192505
11 13234467511
12 249383390393
13 5057242311031
14 109820924003705
15 2542685745501751
16 62527556173577273
17 1627581948113854711
18 44708026328035782905
19 1292443104462527895991
20 39223568601129844839353

List of values

[1, 1, 5, 31, 233, 2071, 21305, 249271, 3270713, 47580151, 760192505, 13234467511, 249383390393, 5057242311031, 109820924003705, 2542685745501751, 62527556173577273, 1627581948113854711, 44708026328035782905, 1292443104462527895991, 39223568601129844839353]