A205823 - cp's OEIS frontend

A205823 T(n,k) = number of (n+1) X (k+1) 0..2 arrays with the number of clockwise edge increases in every 2 X 2 subblock unequal to the number of counterclockwise edge increases.

n	a(n)
1	24
2	66
3	66
4	180
5	216
6	180
7	492
8	714
9	714
10	492
11	1344
12	2430
13	2880
14	2430
15	1344
16	3672
17	8274
18	12318
19	12318
20	8274
21	3672
22	10032
23	28242
24	53100
25	67944
26	53100
27	28242
28	10032
29	27408
30	96402
31	230532
32	380568
33	380568
34	230532
35	96402
36	27408
37	74880
38	329130
39	1002240

[24, 66, 66, 180, 216, 180, 492, 714, 714, 492, 1344, 2430, 2880, 2430, 1344, 3672, 8274, 12318, 12318, 8274, 3672, 10032, 28242, 53100, 67944, 53100, 28242, 10032, 27408, 96402, 230532, 380568, 380568, 230532, 96402, 27408, 74880, 329130, 1002240]

cp's OEIS Frontend

A205823 T(n,k) = number of (n+1) X (k+1) 0..2 arrays with the number of clockwise edge increases in every 2 X 2 subblock unequal to the number of counterclockwise edge increases.

Table of values

List of values