A208467 - cp's OEIS frontend

A208467 Number of 2Xn nonnegative integer arrays with new values 0 upwards 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	15
3	198
4	4041
5	113458
6	4132120
7	187612143
8	10318694804
9	672619407731
10	51074630353994
11	4455159144290726
12	441285917587055633
13	49152543937083199076
14	6105599904286957450405
15	839738743273230043872218

[2, 15, 198, 4041, 113458, 4132120, 187612143, 10318694804, 672619407731, 51074630353994, 4455159144290726, 441285917587055633, 49152543937083199076, 6105599904286957450405, 839738743273230043872218]

cp's OEIS Frontend

A208467 Number of 2Xn nonnegative integer arrays with new values 0 upwards 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