A274839 - cp's OEIS frontend

A274839 Number of set partitions of [n] such that the difference between each element and its block index is a multiple of six.

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	1
6	1
7	2
8	3
9	4
10	5
11	6
12	7
13	15
14	30
15	57
16	104
17	183
18	310
19	811
20	1939
21	4377
22	9497
23	19987
24	40883
25	121620
26	339817
27	902822
28	2301883
29	5665060
30	13489425
31	44503335
32	140080438
33	425111779
34	1250942834
35	3575716011
36	9910354002
37	36376567529
38	127026151621

[1, 1, 1, 1, 1, 1, 1, 2, 3, 4, 5, 6, 7, 15, 30, 57, 104, 183, 310, 811, 1939, 4377, 9497, 19987, 40883, 121620, 339817, 902822, 2301883, 5665060, 13489425, 44503335, 140080438, 425111779, 1250942834, 3575716011, 9910354002, 36376567529, 127026151621]

cp's OEIS Frontend

A274839 Number of set partitions of [n] such that the difference between each element and its block index is a multiple of six.

Table of values

List of values