A221823 - cp's OEIS frontend

A221823 Number of n X 4 arrays of occupancy after each element stays put or moves to some horizontal or vertical neighbor, without consecutive moves in the same direction.

n	a(n)
1	13
2	2113
3	190756
4	18636989
5	1804472268
6	174820457922
7	16936005698353
8	1640717334488903
9	158947987755078035
10	15398437448141904936
11	1491757378064714004413
12	144517269678468770214198

[13, 2113, 190756, 18636989, 1804472268, 174820457922, 16936005698353, 1640717334488903, 158947987755078035, 15398437448141904936, 1491757378064714004413, 144517269678468770214198]

cp's OEIS Frontend

A221823 Number of n X 4 arrays of occupancy after each element stays put or moves to some horizontal or vertical neighbor, without consecutive moves in the same direction.

Table of values

List of values