A208864 - cp's OEIS frontend

A208864 T(n,k)=Number of nXk 0..3 arrays with new values 0..3 introduced in row major order and no element equal to more than one of its immediate leftward or upward or left-upward diagonal neighbors.

n	a(n)
1	1
2	2
3	2
4	5
5	11
6	5
7	15
8	127
9	127
10	15
11	51
12	1691
13	5796
14	1691
15	51
16	187
17	23047
18	273049
19	273049
20	23047
21	187
22	715
23	315203
24	12883280
25	44452082
26	12883280
27	315203
28	715
29	2795
30	4313071
31	607924387
32	7240366702
33	7240366702
34	607924387
35	4313071
36	2795
37	11051
38	59022155

[1, 2, 2, 5, 11, 5, 15, 127, 127, 15, 51, 1691, 5796, 1691, 51, 187, 23047, 273049, 273049, 23047, 187, 715, 315203, 12883280, 44452082, 12883280, 315203, 715, 2795, 4313071, 607924387, 7240366702, 7240366702, 607924387, 4313071, 2795, 11051, 59022155]

cp's OEIS Frontend

A208864 T(n,k)=Number of nXk 0..3 arrays with new values 0..3 introduced in row major order and no element equal to more than one of its immediate leftward or upward or left-upward diagonal neighbors.

Table of values

List of values