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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.

A365525 a(n) = Sum_{k=0..floor(n/4)} Stirling2(n,4*k).

Table of values

n a(n)
0 1
1 0
2 0
3 0
4 1
5 10
6 65
7 350
8 1702
9 7806
10 34855
11 157630
12 770529
13 4432220
14 31307432
15 259090260
16 2316320073
17 21172354778
18 193091210857
19 1744478148866
20 15627203762926
21 139526376391986
22 1251976261264071
23 11417796498945894
24 107280845105151601

List of values

[1, 0, 0, 0, 1, 10, 65, 350, 1702, 7806, 34855, 157630, 770529, 4432220, 31307432, 259090260, 2316320073, 21172354778, 193091210857, 1744478148866, 15627203762926, 139526376391986, 1251976261264071, 11417796498945894, 107280845105151601]

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

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