A194729 - cp's OEIS frontend

A194729 Number of 9-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	17
3	353
4	8113
5	198401
6	5060433
7	133071009
8	3581326065
9	98156060225
10	2730108129937
11	76862217117665
12	2186096427128369
13	62718004238927233
14	1812849590253944273
15	52742324721313632033
16	1543272031837984426353
17	45386639860532255882433
18	1340844916965007902013713

[1, 1, 17, 353, 8113, 198401, 5060433, 133071009, 3581326065, 98156060225, 2730108129937, 76862217117665, 2186096427128369, 62718004238927233, 1812849590253944273, 52742324721313632033, 1543272031837984426353, 45386639860532255882433, 1340844916965007902013713]

cp's OEIS Frontend

A194729 Number of 9-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