A183819 - cp's OEIS frontend

A183819 T(n,k)=1/81 the number of (n+1)X(k+1) 0..2 arrays with no 2X2 subblock being a reflection across the shared element pair of any horizontal or vertical neighbor.

n	a(n)
1	1
2	8
3	8
4	64
5	162
6	64
7	512
8	3256
9	3256
10	512
11	4096
12	65640
13	163208
14	65640
15	4096
16	32768
17	1321860
18	8231592
19	8231592
20	1321860
21	32768
22	262144
23	26630220
24	414246824
25	1042063656
26	414246824
27	26630220
28	262144
29	2097152
30	536415300
31	20864057480

[1, 8, 8, 64, 162, 64, 512, 3256, 3256, 512, 4096, 65640, 163208, 65640, 4096, 32768, 1321860, 8231592, 8231592, 1321860, 32768, 262144, 26630220, 414246824, 1042063656, 414246824, 26630220, 262144, 2097152, 536415300, 20864057480]

cp's OEIS Frontend

A183819 T(n,k)=1/81 the number of (n+1)X(k+1) 0..2 arrays with no 2X2 subblock being a reflection across the shared element pair of any horizontal or vertical neighbor.

Table of values

List of values