A277672 - cp's OEIS frontend

A277672 Number of n-length words over a 9-ary alphabet {a_1,a_2,...,a_9} avoiding consecutive letters a_i, a_{i+1}.

n	a(n)
0	1
1	9
2	73
3	592
4	4801
5	38935
6	315754
7	2560693
8	20766637
9	168412696
10	1365788605
11	11076234500
12	89825738954
13	728466283251
14	5907695633935
15	47910065991605
16	388539722685585
17	3150968653039294
18	25553638078006016
19	207234184444162395
20	1680622033979603605

[1, 9, 73, 592, 4801, 38935, 315754, 2560693, 20766637, 168412696, 1365788605, 11076234500, 89825738954, 728466283251, 5907695633935, 47910065991605, 388539722685585, 3150968653039294, 25553638078006016, 207234184444162395, 1680622033979603605]

cp's OEIS Frontend

A277672 Number of n-length words over a 9-ary alphabet {a_1,a_2,...,a_9} avoiding consecutive letters a_i, a_{i+1}.

Table of values

List of values