A198900 - cp's OEIS frontend

A198900 Number of n X 2 0..4 arrays with values 0..4 introduced in row major order and no element equal to any horizontal or vertical neighbor.

n	a(n)
1	1
2	4
3	33
4	380
5	4801
6	62004
7	804833
8	10459180
9	135958401
10	1767426404
11	22976444833
12	298693487580
13	3883014452801
14	50479185229204
15	656229400008033
16	8530982176189580
17	110902768218720001
18	1441735986628126404

[1, 4, 33, 380, 4801, 62004, 804833, 10459180, 135958401, 1767426404, 22976444833, 298693487580, 3883014452801, 50479185229204, 656229400008033, 8530982176189580, 110902768218720001, 1441735986628126404]

cp's OEIS Frontend

A198900 Number of n X 2 0..4 arrays with values 0..4 introduced in row major order and no element equal to any horizontal or vertical neighbor.

Table of values

List of values