A382992 - cp's OEIS frontend

A382992 Number of compositions of n that have at least 1 part equal to 1 and any part 1 at position k can be k different colors.

n	a(n)
0	0
1	1
2	2
3	9
4	38
5	190
6	1105
7	7465
8	57808
9	505924
10	4940320
11	53248819
12	627848796
13	8037734786
14	111017325240
15	1645384681388
16	26044845197271
17	438499277778649
18	7824114643729925
19	147476551001252541
20	2928074880767250057
21	61078483577649281698
22	1335438738400978500931

[0, 1, 2, 9, 38, 190, 1105, 7465, 57808, 505924, 4940320, 53248819, 627848796, 8037734786, 111017325240, 1645384681388, 26044845197271, 438499277778649, 7824114643729925, 147476551001252541, 2928074880767250057, 61078483577649281698, 1335438738400978500931]

cp's OEIS Frontend

A382992 Number of compositions of n that have at least 1 part equal to 1 and any part 1 at position k can be k different colors.

Table of values

List of values