cp's OEIS Frontend

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.

A357933 a(n) = Sum_{k=0..floor(n/5)} |Stirling1(n - 4*k,n - 5*k)|.

Table of values

n a(n)
0 1
1 1
2 1
3 1
4 1
5 1
6 2
7 4
8 7
9 11
10 16
11 24
12 40
13 72
14 131
15 231
16 395
17 675
18 1187
19 2161
20 4006
21 7414
22 13609
23 24951
24 46210
25 86930
26 165528
27 316682
28 606047
29 1161343
30 2237329
31 4345777
32 8507103
33 16738587
34 33030166
35 65352308
36 129821251
37 259254283
38 520531422
39 1049771054
40 2124315222

List of values

[1, 1, 1, 1, 1, 1, 2, 4, 7, 11, 16, 24, 40, 72, 131, 231, 395, 675, 1187, 2161, 4006, 7414, 13609, 24951, 46210, 86930, 165528, 316682, 606047, 1161343, 2237329, 4345777, 8507103, 16738587, 33030166, 65352308, 129821251, 259254283, 520531422, 1049771054, 2124315222]

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

Content is available under The OEIS End-User License Agreement.