A221885 - cp's OEIS frontend

A221885 Number of nX4 arrays of occupancy after each element stays put or moves to some horizontal, vertical or antidiagonal neighbor, without consecutive moves in the same direction.

n	a(n)
1	13
2	3223
3	449069
4	65039658
5	9356131846
6	1347142288446
7	193944559610138
8	27922276785982528
9	4019968490456852781
10	578754876292668561410
11	83323335396986744374226
12	11996060075504536682447230

[13, 3223, 449069, 65039658, 9356131846, 1347142288446, 193944559610138, 27922276785982528, 4019968490456852781, 578754876292668561410, 83323335396986744374226, 11996060075504536682447230]

cp's OEIS Frontend

A221885 Number of nX4 arrays of occupancy after each element stays put or moves to some horizontal, vertical or antidiagonal neighbor, without consecutive moves in the same direction.

Table of values

List of values