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.

A078938 Cube of lower triangular matrix of A056857 (successive equalities in set partitions of n).

Table of values

n a(n)
0 1
1 3
2 1
3 12
4 6
5 1
6 57
7 36
8 9
9 1
10 309
11 228
12 72
13 12
14 1
15 1866
16 1545
17 570
18 120
19 15
20 1
21 12351
22 11196
23 4635
24 1140
25 180
26 18
27 1
28 88563
29 86457
30 39186
31 10815
32 1995
33 252
34 21
35 1
36 681870
37 708504
38 345828
39 104496
40 21630
41 3192
42 336
43 24
44 1
45 5597643
46 6136830
47 3188268

List of values

[1, 3, 1, 12, 6, 1, 57, 36, 9, 1, 309, 228, 72, 12, 1, 1866, 1545, 570, 120, 15, 1, 12351, 11196, 4635, 1140, 180, 18, 1, 88563, 86457, 39186, 10815, 1995, 252, 21, 1, 681870, 708504, 345828, 104496, 21630, 3192, 336, 24, 1, 5597643, 6136830, 3188268]