A261854 - cp's OEIS frontend

A261854 Number of compositions of n into distinct parts where each part i is marked with a word of length i over a ternary alphabet whose letters appear in alphabetical order and all letters occur at least once in the composition.

n	a(n)
3	7
4	21
5	96
6	832
7	1539
8	4281
9	10902
10	76020
11	117585
12	306639
13	634686
14	1537206
15	9013319
16	13793487
17	32005392
18	64458596
19	138068775
20	278292429
21	1622912266
22	2321086080
23	5318890971
24	10014128239
25	20784037248
26	38209197732
27	80154402633
28	415073903937
29	593664848658

[7, 21, 96, 832, 1539, 4281, 10902, 76020, 117585, 306639, 634686, 1537206, 9013319, 13793487, 32005392, 64458596, 138068775, 278292429, 1622912266, 2321086080, 5318890971, 10014128239, 20784037248, 38209197732, 80154402633, 415073903937, 593664848658]

cp's OEIS Frontend

A261854 Number of compositions of n into distinct parts where each part i is marked with a word of length i over a ternary alphabet whose letters appear in alphabetical order and all letters occur at least once in the composition.

Table of values

List of values