A382991 - cp's OEIS frontend

A382991 Number of compositions of n such that any part 1 at position k can be k different colors.

n	a(n)
0	1
1	1
2	3
3	10
4	40
5	193
6	1110
7	7473
8	57821
9	505945
10	4940354
11	53248874
12	627848885
13	8037734930
14	111017325473
15	1645384681765
16	26044845197881
17	438499277779636
18	7824114643731522
19	147476551001255125
20	2928074880767254238
21	61078483577649288463
22	1335438738400978511877

[1, 1, 3, 10, 40, 193, 1110, 7473, 57821, 505945, 4940354, 53248874, 627848885, 8037734930, 111017325473, 1645384681765, 26044845197881, 438499277779636, 7824114643731522, 147476551001255125, 2928074880767254238, 61078483577649288463, 1335438738400978511877]

cp's OEIS Frontend

A382991 Number of compositions of n such that any part 1 at position k can be k different colors.

Table of values

List of values