A278183 - cp's OEIS frontend

A278183 Number of n X 2 0..3 arrays with every element plus 1 mod 4 equal to some element at offset (-1,-1) (-1,0) (-1,1) (0,-1) (0,1) or (1,0), with upper left element zero.

n	a(n)
1	0
2	3
3	28
4	200
5	1532
6	11794
7	90538
8	695252
9	5339294
10	41003018
11	314882364
12	2418138526
13	18570087298
14	142608927356
15	1095164819630
16	8410314860218
17	64586987065356
18	495995568270926
19	3808996439085090
20	29251176423848812

[0, 3, 28, 200, 1532, 11794, 90538, 695252, 5339294, 41003018, 314882364, 2418138526, 18570087298, 142608927356, 1095164819630, 8410314860218, 64586987065356, 495995568270926, 3808996439085090, 29251176423848812]

cp's OEIS Frontend

A278183 Number of n X 2 0..3 arrays with every element plus 1 mod 4 equal to some element at offset (-1,-1) (-1,0) (-1,1) (0,-1) (0,1) or (1,0), with upper left element zero.

Table of values

List of values