A221853 - cp's OEIS frontend

A221853 Number of 2 X n arrays of occupancy after each element stays put or moves to some horizontal, diagonal or antidiagonal neighbor, without consecutive moves in the same direction.

n	a(n)
1	1
2	31
3	302
4	3437
5	37155
6	406612
7	4434129
8	48397883
9	528123314
10	5763315281
11	62892896491
12	686329748776
13	7489683895265
14	81732408497079
15	891918279715066
16	9733204380907645
17	106215187016111667
18	1159090627331995148

[1, 31, 302, 3437, 37155, 406612, 4434129, 48397883, 528123314, 5763315281, 62892896491, 686329748776, 7489683895265, 81732408497079, 891918279715066, 9733204380907645, 106215187016111667, 1159090627331995148]

cp's OEIS Frontend

A221853 Number of 2 X n arrays of occupancy after each element stays put or moves to some horizontal, diagonal or antidiagonal neighbor, without consecutive moves in the same direction.

Table of values

List of values