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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.

A357832 a(n) = Sum_{k=0..floor((n-1)/3)} 2^k * |Stirling1(n,3*k+1)|.

Table of values

n a(n)
0 0
1 1
2 1
3 2
4 8
5 44
6 290
7 2194
8 18690
9 177072
10 1848048
11 21079332
12 260998584
13 3487438476
14 50030096844
15 767092681992
16 12520306878720
17 216760973139072
18 3967857438205320
19 76575231882844056
20 1553981718941428824
21 33082675130470434336
22 737250032464248840192

List of values

[0, 1, 1, 2, 8, 44, 290, 2194, 18690, 177072, 1848048, 21079332, 260998584, 3487438476, 50030096844, 767092681992, 12520306878720, 216760973139072, 3967857438205320, 76575231882844056, 1553981718941428824, 33082675130470434336, 737250032464248840192]

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

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