A242631 - cp's OEIS frontend

A242631 Number of n-length words w over an 8-ary alphabet {a_1,...,a_8} such that w contains never more than j consecutive letters a_j (for 1<=j<=8).

n	a(n)
0	1
1	8
2	63
3	496
4	3904
5	30729
6	241871
7	1903792
8	14984945
9	117948062
10	928381475
11	7307387240
12	57517205708
13	452723914009
14	3563437058402
15	28048184061555
16	220770176730345
17	1737705044525640
18	13677657310833723
19	107658264618591797
20	847389408675004032
21	6669890253930098674

[1, 8, 63, 496, 3904, 30729, 241871, 1903792, 14984945, 117948062, 928381475, 7307387240, 57517205708, 452723914009, 3563437058402, 28048184061555, 220770176730345, 1737705044525640, 13677657310833723, 107658264618591797, 847389408675004032, 6669890253930098674]

cp's OEIS Frontend

A242631 Number of n-length words w over an 8-ary alphabet {a_1,...,a_8} such that w contains never more than j consecutive letters a_j (for 1<=j<=8).

Table of values

List of values