A212334 - cp's OEIS frontend

A212334 Number of words, either empty or beginning with the first letter of the 4-ary alphabet, where each letter of the alphabet occurs n times and letters of neighboring word positions are equal or neighbors in the alphabet.

n	a(n)
0	1
1	1
2	9
3	163
4	3593
5	87501
6	2266155
7	61211095
8	1704838665
9	48605519665
10	1411522695509
11	41606511550803
12	1241591466423467
13	37435593955828069
14	1138713916992923679
15	34901292375152457663
16	1076813644170756916745
17	33416749492077957930105
18	1042376218505671236116985

[1, 1, 9, 163, 3593, 87501, 2266155, 61211095, 1704838665, 48605519665, 1411522695509, 41606511550803, 1241591466423467, 37435593955828069, 1138713916992923679, 34901292375152457663, 1076813644170756916745, 33416749492077957930105, 1042376218505671236116985]

cp's OEIS Frontend

A212334 Number of words, either empty or beginning with the first letter of the 4-ary alphabet, where each letter of the alphabet occurs n times and letters of neighboring word positions are equal or neighbors in the alphabet.

Table of values

List of values