A198528 - cp's OEIS frontend

A198528 T(n,k) is the number of n X k 0..4 arrays with values 0..4 introduced in row major order and each element equal to no more than two horizontal and vertical neighbors.

n	a(n)
1	1
2	2
3	2
4	5
5	15
6	5
7	15
8	193
9	193
10	15
11	52
12	3660
13	16714
14	3660
15	52
16	202
17	81844
18	1877316
19	1877316
20	81844
21	202
22	855
23	1948672
24	222590953
25	1084539825
26	222590953
27	1948672
28	855
29	3845
30	47436498
31	26670041125
32	634586561196
33	634586561196
34	26670041125

[1, 2, 2, 5, 15, 5, 15, 193, 193, 15, 52, 3660, 16714, 3660, 52, 202, 81844, 1877316, 1877316, 81844, 202, 855, 1948672, 222590953, 1084539825, 222590953, 1948672, 855, 3845, 47436498, 26670041125, 634586561196, 634586561196, 26670041125]

cp's OEIS Frontend

A198528 T(n,k) is the number of n X k 0..4 arrays with values 0..4 introduced in row major order and each element equal to no more than two horizontal and vertical neighbors.

Table of values

List of values