A261838 - cp's OEIS frontend

A261838 Number of compositions of n into distinct parts where each part i is marked with a word of length i over a k-ary alphabet (k=1,2,3,...) whose letters appear in alphabetical order and all k letters occur at least once in the composition.

n	a(n)
0	1
1	1
2	2
3	20
4	48
5	264
6	4296
7	14528
8	89472
9	593248
10	19115360
11	75604544
12	599169408
13	4141674240
14	40147321344
15	2159264715776
16	10240251475456
17	92926573965184
18	746025520714112
19	7285397378650112
20	82900557619046912
21	7796186873306241024
22	41825012467664893440

[1, 1, 2, 20, 48, 264, 4296, 14528, 89472, 593248, 19115360, 75604544, 599169408, 4141674240, 40147321344, 2159264715776, 10240251475456, 92926573965184, 746025520714112, 7285397378650112, 82900557619046912, 7796186873306241024, 41825012467664893440]

cp's OEIS Frontend

A261838 Number of compositions of n into distinct parts where each part i is marked with a word of length i over a k-ary alphabet (k=1,2,3,...) whose letters appear in alphabetical order and all k letters occur at least once in the composition.

Table of values

List of values