A184694 - cp's OEIS frontend

A184694 T(n,k)=1/3 the number of nXk 0..2 arrays with no element equal both to the element above and to the element to its left.

n	a(n)
1	1
2	3
3	3
4	9
5	24
6	9
7	27
8	192
9	192
10	27
11	81
12	1536
13	4080
14	1536
15	81
16	243
17	12288
18	86688
19	86688
20	12288
21	243
22	729
23	98304
24	1841856
25	4890528
26	1841856
27	98304
28	729
29	2187
30	786432
31	39133824
32	275895264
33	275895264
34	39133824
35	786432
36	2187
37	6561
38	6291456

[1, 3, 3, 9, 24, 9, 27, 192, 192, 27, 81, 1536, 4080, 1536, 81, 243, 12288, 86688, 86688, 12288, 243, 729, 98304, 1841856, 4890528, 1841856, 98304, 729, 2187, 786432, 39133824, 275895264, 275895264, 39133824, 786432, 2187, 6561, 6291456]

cp's OEIS Frontend

A184694 T(n,k)=1/3 the number of nXk 0..2 arrays with no element equal both to the element above and to the element to its left.

Table of values

List of values