A113236 - cp's OEIS frontend

A113236 Number of partitions of {1,..,n} into any number of lists of size not equal to 3, where a list means an ordered subset, cf. A000262.

n	a(n)
0	1
1	1
2	3
3	7
4	49
5	321
6	2851
7	24823
8	256257
9	2887489
10	36759331
11	507010791
12	7597222513
13	122184356737
14	2106356007939
15	38693238713431
16	754792977928321
17	15572911248409473
18	338800604611562947
19	7749991799652960199
20	185934065196259734321
21	4667877395135551746241

[1, 1, 3, 7, 49, 321, 2851, 24823, 256257, 2887489, 36759331, 507010791, 7597222513, 122184356737, 2106356007939, 38693238713431, 754792977928321, 15572911248409473, 338800604611562947, 7749991799652960199, 185934065196259734321, 4667877395135551746241]

cp's OEIS Frontend

A113236 Number of partitions of {1,..,n} into any number of lists of size not equal to 3, where a list means an ordered subset, cf. A000262.

Table of values

List of values