A261828 - cp's OEIS frontend

A261828 Number of compositions of 2n into distinct parts where each part i is marked with a word of length i over an n-ary alphabet whose letters appear in alphabetical order and all n letters occur at least once in the composition.

n	a(n)
0	1
1	1
2	15
3	832
4	14791
5	2008546
6	55380132
7	2868333476
8	511805155863
9	31512728488918
10	2638310862477610
11	926651539894899446
12	74254761492776175196
13	6851495812540548188072
14	9541620342114654822145972
15	611287722968440282212322702
16	58354641005988089624088037623

[1, 1, 15, 832, 14791, 2008546, 55380132, 2868333476, 511805155863, 31512728488918, 2638310862477610, 926651539894899446, 74254761492776175196, 6851495812540548188072, 9541620342114654822145972, 611287722968440282212322702, 58354641005988089624088037623]

cp's OEIS Frontend

A261828 Number of compositions of 2n into distinct parts where each part i is marked with a word of length i over an n-ary alphabet whose letters appear in alphabetical order and all n letters occur at least once in the composition.

Table of values

List of values