A241133 - cp's OEIS frontend

A241133 Number of n X 2 0..2 arrays with no element equal to the same number of vertical neighbors as horizontal neighbors, with new values 0..2 introduced in row major order.

n	a(n)
1	1
2	2
3	5
4	17
5	56
6	195
7	691
8	2476
9	8941
10	32393
11	117632
12	427635
13	1555643
14	5661060
15	20604893
16	75004865
17	273044808
18	994013923
19	3618750915
20	13174348572
21	47962513037
22	174612764153
23	635697854288
24	2314333217939
25	8425607885003

[1, 2, 5, 17, 56, 195, 691, 2476, 8941, 32393, 117632, 427635, 1555643, 5661060, 20604893, 75004865, 273044808, 994013923, 3618750915, 13174348572, 47962513037, 174612764153, 635697854288, 2314333217939, 8425607885003]

cp's OEIS Frontend

A241133 Number of n X 2 0..2 arrays with no element equal to the same number of vertical neighbors as horizontal neighbors, with new values 0..2 introduced in row major order.

Table of values

List of values