A217958 - cp's OEIS frontend

A217958 Number of n X 2 arrays of the minimum value of corresponding elements and their horizontal or antidiagonal neighbors in a random 0..2 n X 2 array.

n	a(n)
1	3
2	17
3	77
4	343
5	1523
6	6761
7	30013
8	133231
9	591427
10	2625409
11	11654477
12	51735495
13	229659507
14	1019483609
15	4525598973
16	20089627615
17	89180048899
18	395879967217
19	1757354367693
20	7801087777591
21	34629879796851
22	153725814775369

[3, 17, 77, 343, 1523, 6761, 30013, 133231, 591427, 2625409, 11654477, 51735495, 229659507, 1019483609, 4525598973, 20089627615, 89180048899, 395879967217, 1757354367693, 7801087777591, 34629879796851, 153725814775369]

cp's OEIS Frontend

A217958 Number of n X 2 arrays of the minimum value of corresponding elements and their horizontal or antidiagonal neighbors in a random 0..2 n X 2 array.

Table of values

List of values