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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.

A384836 a(n) = Sum_{k=0..floor(n/4)} |Stirling1(n,4*k)|.

Table of values

n a(n)
0 1
1 0
2 0
3 0
4 1
5 10
6 85
7 735
8 6770
9 67320
10 724550
11 8427650
12 105615500
13 1420941600
14 20448793300
15 313670857500
16 5111631733000
17 88224807112000
18 1608190674259000
19 30879323250633000
20 623074177992110000
21 13182400475167560000
22 291842125111122170000
23 6748135840840046510000

List of values

[1, 0, 0, 0, 1, 10, 85, 735, 6770, 67320, 724550, 8427650, 105615500, 1420941600, 20448793300, 313670857500, 5111631733000, 88224807112000, 1608190674259000, 30879323250633000, 623074177992110000, 13182400475167560000, 291842125111122170000, 6748135840840046510000]

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

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