A208393 - cp's OEIS frontend

A208393 Number of 2 X n 0..2 arrays with new values 0..2 introduced in row major order and no element equal to more than two of its immediate leftward or upward or right-upward antidiagonal neighbors.

n	a(n)
1	2
2	14
3	117
4	1017
5	8838
6	76806
7	667476
8	5800644
9	50410008
10	438083928
11	3807131472
12	33085555344
13	287527231584
14	2498731184736
15	21715012867392
16	188712490047552
17	1639989997584768
18	14252194920963456
19	123857499353216256

[2, 14, 117, 1017, 8838, 76806, 667476, 5800644, 50410008, 438083928, 3807131472, 33085555344, 287527231584, 2498731184736, 21715012867392, 188712490047552, 1639989997584768, 14252194920963456, 123857499353216256]

cp's OEIS Frontend

A208393 Number of 2 X n 0..2 arrays with new values 0..2 introduced in row major order and no element equal to more than two of its immediate leftward or upward or right-upward antidiagonal neighbors.

Table of values

List of values