A186218 - cp's OEIS frontend

A186218 T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with every 2X2 subblock determinant equal to some horizontal or vertical neighbor 2X2 subblock determinant.

n	a(n)
1	0
2	175
3	175
4	609
5	1969
6	609
7	3593
8	18873
9	18873
10	3593
11	15055
12	197619
13	308593
14	197619
15	15055
16	76263
17	2008031
18	6275745
19	6275745
20	2008031
21	76263
22	353985
23	20738153
24	116461359
25	255375977
26	116461359
27	20738153
28	353985
29	1729733
30	213108423

[0, 175, 175, 609, 1969, 609, 3593, 18873, 18873, 3593, 15055, 197619, 308593, 197619, 15055, 76263, 2008031, 6275745, 6275745, 2008031, 76263, 353985, 20738153, 116461359, 255375977, 116461359, 20738153, 353985, 1729733, 213108423]

cp's OEIS Frontend

A186218 T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with every 2X2 subblock determinant equal to some horizontal or vertical neighbor 2X2 subblock determinant.

Table of values

List of values