A187624 - cp's OEIS frontend

A187624 T(n,k)=Number of (n+1)X(n+1) 0..k arrays with each 2X2 non-center subblock determinant nonzero and the array of 2X2 subblock determinants antisymmetric under 90 degree rotation.

n	a(n)
1	10
2	31
3	24
4	64
5	446
6	2
7	113
8	2924
9	60
10	948
11	170
12	12104
13	390
14	324452
15	36
16	255
17	37448
18	2146
19	12278892
20	70548
21	190972
22	336
23	98014
24	5324
25	221177664
26	4232368
27	6090023738
28	3020
29	449
30	221640
31	16042
32	1896404966

[10, 31, 24, 64, 446, 2, 113, 2924, 60, 948, 170, 12104, 390, 324452, 36, 255, 37448, 2146, 12278892, 70548, 190972, 336, 98014, 5324, 221177664, 4232368, 6090023738, 3020, 449, 221640, 16042, 1896404966]

cp's OEIS Frontend

A187624 T(n,k)=Number of (n+1)X(n+1) 0..k arrays with each 2X2 non-center subblock determinant nonzero and the array of 2X2 subblock determinants antisymmetric under 90 degree rotation.

Table of values

List of values