A293580 - cp's OEIS frontend

A293580 Number of compositions of n where each part i is marked with a word of length i over a ternary alphabet whose letters appear in alphabetical order and all three letters occur at least once in the composition.

n	a(n)
3	13
4	132
5	924
6	5546
7	30720
8	162396
9	834004
10	4204080
11	20932656
12	103365416
13	507538320
14	2482394448
15	12108785680
16	58954149792
17	286654114176
18	1392524616032
19	6760326357888
20	32804684941248
21	159135076864576
22	771789378620928
23	3742512930335232
24	18145949724380288

[13, 132, 924, 5546, 30720, 162396, 834004, 4204080, 20932656, 103365416, 507538320, 2482394448, 12108785680, 58954149792, 286654114176, 1392524616032, 6760326357888, 32804684941248, 159135076864576, 771789378620928, 3742512930335232, 18145949724380288]

cp's OEIS Frontend

A293580 Number of compositions of n where each part i is marked with a word of length i over a ternary alphabet whose letters appear in alphabetical order and all three letters occur at least once in the composition.

Table of values

List of values