A194728 - cp's OEIS frontend

A194728 Number of 8-ary words either empty or beginning with the first character of the alphabet, that can be built by inserting n doublets into the initially empty word.

n	a(n)
0	1
1	1
2	15
3	274
4	5531
5	118686
6	2654646
7	61189668
8	1443039123
9	34648845862
10	844131474530
11	20813234394492
12	518373091849502
13	13021801045587244
14	329543346098061516
15	8393705745623980104
16	215009056951891319811
17	5535306699430995140214
18	143144289829339089562986

[1, 1, 15, 274, 5531, 118686, 2654646, 61189668, 1443039123, 34648845862, 844131474530, 20813234394492, 518373091849502, 13021801045587244, 329543346098061516, 8393705745623980104, 215009056951891319811, 5535306699430995140214, 143144289829339089562986]

cp's OEIS Frontend

A194728 Number of 8-ary words either empty or beginning with the first character of the alphabet, that can be built by inserting n doublets into the initially empty word.

Table of values

List of values