A277673 - cp's OEIS frontend

A277673 Number of n-length words over an n-ary alphabet {a_1,a_2,...,a_n} avoiding consecutive letters a_i, a_{i+1}.

n	a(n)
0	1
1	1
2	3
3	16
4	136
5	1547
6	22012
7	375231
8	7445184
9	168412696
10	4275561136
11	120338946469
12	3718175865856
13	125094920949797
14	4551798150123456
15	178094082550301368
16	7455514741874966528
17	332495821030327545527
18	15737024371475868676864
19	787813565550480151088691

[1, 1, 3, 16, 136, 1547, 22012, 375231, 7445184, 168412696, 4275561136, 120338946469, 3718175865856, 125094920949797, 4551798150123456, 178094082550301368, 7455514741874966528, 332495821030327545527, 15737024371475868676864, 787813565550480151088691]

cp's OEIS Frontend

A277673 Number of n-length words over an n-ary alphabet {a_1,a_2,...,a_n} avoiding consecutive letters a_i, a_{i+1}.

Table of values

List of values