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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.

A308444 a(0) = 1; a(n) = Sum_{k=1..n} Stirling2(n,k)*a(n-k).

Table of values

n a(n)
0 1
1 1
2 2
3 6
4 27
5 178
6 1701
7 23444
8 464207
9 13175526
10 535353033
11 31114680549
12 2585577239479
13 307143443783879
14 52156058585285410
15 12661558539485464967
16 4394996515200407462730
17 2181761307828685811029286
18 1549298114199282873678255787
19 1574165879361329032738370945407

List of values

[1, 1, 2, 6, 27, 178, 1701, 23444, 464207, 13175526, 535353033, 31114680549, 2585577239479, 307143443783879, 52156058585285410, 12661558539485464967, 4394996515200407462730, 2181761307828685811029286, 1549298114199282873678255787, 1574165879361329032738370945407]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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