A183362 - cp's OEIS frontend

A183362 T(n,k)=One quarter the number of nXk 1..4 arrays with no two neighbors of any element equal to each other.

n	a(n)
1	1
2	4
3	4
4	12
5	36
6	12
7	36
8	144
9	144
10	36
11	108
12	576
13	432
14	576
15	108
16	324
17	2304
18	1296
19	1296
20	2304
21	324
22	972
23	9216
24	3888
25	3600
26	3888
27	9216
28	972
29	2916
30	36864
31	11664
32	9216
33	9216
34	11664
35	36864
36	2916
37	8748
38	147456
39	34992
40	24336
41	24192
42	24336
43	34992
44	147456
45	8748

[1, 4, 4, 12, 36, 12, 36, 144, 144, 36, 108, 576, 432, 576, 108, 324, 2304, 1296, 1296, 2304, 324, 972, 9216, 3888, 3600, 3888, 9216, 972, 2916, 36864, 11664, 9216, 9216, 11664, 36864, 2916, 8748, 147456, 34992, 24336, 24192, 24336, 34992, 147456, 8748]

cp's OEIS Frontend

A183362 T(n,k)=One quarter the number of nXk 1..4 arrays with no two neighbors of any element equal to each other.

Table of values

List of values