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.

A095149 Triangle read by rows: Aitken's array (A011971) but with a leading diagonal before it given by the Bell numbers (A000110), 1, 1, 2, 5, 15, 52, ...

Table of values

n a(n)
0 1
1 1
2 1
3 2
4 1
5 2
6 5
7 2
8 3
9 5
10 15
11 5
12 7
13 10
14 15
15 52
16 15
17 20
18 27
19 37
20 52
21 203
22 52
23 67
24 87
25 114
26 151
27 203
28 877
29 203
30 255
31 322
32 409
33 523
34 674
35 877
36 4140
37 877
38 1080
39 1335
40 1657
41 2066
42 2589
43 3263
44 4140
45 21147
46 4140
47 5017
48 6097
49 7432
50 9089
51 11155
52 13744
53 17007
54 21147

List of values

[1, 1, 1, 2, 1, 2, 5, 2, 3, 5, 15, 5, 7, 10, 15, 52, 15, 20, 27, 37, 52, 203, 52, 67, 87, 114, 151, 203, 877, 203, 255, 322, 409, 523, 674, 877, 4140, 877, 1080, 1335, 1657, 2066, 2589, 3263, 4140, 21147, 4140, 5017, 6097, 7432, 9089, 11155, 13744, 17007, 21147]

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

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