A261489 - cp's OEIS frontend

A261489 Number of partitions of subsets of {1,...,n}, where consecutive integers and the elements in {1, n} are required to be in different parts.

n	a(n)
0	1
1	2
2	4
3	8
4	25
5	82
6	313
7	1318
8	6098
9	30603
10	165282
11	954065
12	5853242
13	37987146
14	259751877
15	1864926846
16	14016442573
17	109985575616
18	898948324164
19	7637000950875
20	67310106587314
21	614420757079213
22	5799709014601124
23	56530981389520624
24	568255134674637557

[1, 2, 4, 8, 25, 82, 313, 1318, 6098, 30603, 165282, 954065, 5853242, 37987146, 259751877, 1864926846, 14016442573, 109985575616, 898948324164, 7637000950875, 67310106587314, 614420757079213, 5799709014601124, 56530981389520624, 568255134674637557]

cp's OEIS Frontend

A261489 Number of partitions of subsets of {1,...,n}, where consecutive integers and the elements in {1, n} are required to be in different parts.

Table of values

List of values