A274838 - cp's OEIS frontend

A274838 Number of set partitions of [n] such that the difference between each element and its block index is a multiple of five.

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	1
6	2
7	3
8	4
9	5
10	6
11	13
12	26
13	49
14	88
15	151
16	397
17	951
18	2145
19	4633
20	9643
21	28898
22	80843
23	214126
24	542081
25	1317924
26	4392295
27	13871122
28	41984457
29	122463762
30	344409561
31	1273659431
32	4463980333
33	14994032599
34	48610148069
35	152506484015
36	614168698264

[1, 1, 1, 1, 1, 1, 2, 3, 4, 5, 6, 13, 26, 49, 88, 151, 397, 951, 2145, 4633, 9643, 28898, 80843, 214126, 542081, 1317924, 4392295, 13871122, 41984457, 122463762, 344409561, 1273659431, 4463980333, 14994032599, 48610148069, 152506484015, 614168698264]

cp's OEIS Frontend

A274838 Number of set partitions of [n] such that the difference between each element and its block index is a multiple of five.

Table of values

List of values