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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.

A365529 a(n) = Sum_{k=0..floor((n-1)/5)} Stirling2(n,5*k+1).

Table of values

n a(n)
0 0
1 1
2 1
3 1
4 1
5 1
6 2
7 22
8 267
9 2647
10 22828
11 179489
12 1323719
13 9323744
14 63502440
15 422172752
16 2763863468
17 18017811013
18 119078265944
19 822495346707
20 6206943675825
21 53413341096271
22 529613886789747
23 5863983528090106
24 69211078916780252
25 839908976768680556

List of values

[0, 1, 1, 1, 1, 1, 2, 22, 267, 2647, 22828, 179489, 1323719, 9323744, 63502440, 422172752, 2763863468, 18017811013, 119078265944, 822495346707, 6206943675825, 53413341096271, 529613886789747, 5863983528090106, 69211078916780252, 839908976768680556]

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

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