A194725 - cp's OEIS frontend

A194725 Number of 5-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	9
3	97
4	1145
5	14289
6	185193
7	2467137
8	33563481
9	464221105
10	6507351113
11	92236247841
12	1319640776249
13	19031570387857
14	276368559434025
15	4037555902072065
16	59299855337012505
17	875056238174271345
18	12967283824008178185
19	192889769468751321825
20	2879117809973276680185

[1, 1, 9, 97, 1145, 14289, 185193, 2467137, 33563481, 464221105, 6507351113, 92236247841, 1319640776249, 19031570387857, 276368559434025, 4037555902072065, 59299855337012505, 875056238174271345, 12967283824008178185, 192889769468751321825, 2879117809973276680185]

cp's OEIS Frontend

A194725 Number of 5-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