A222766 - cp's OEIS frontend

A222766 Number of nX5 0..1 arrays with exactly floor(nX5/2) elements unequal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..1 order.

n	a(n)
1	4
2	18
3	158
4	2608
5	19766
6	333978
7	2645385
8	45830457
9	370518626
10	6504289924
11	53224723750
12	942396671062
13	7774316625479
14	138492173604656
15	1149166452333809
16	20564313304270211
17	171388475477573948
18	3077759439903425070

[4, 18, 158, 2608, 19766, 333978, 2645385, 45830457, 370518626, 6504289924, 53224723750, 942396671062, 7774316625479, 138492173604656, 1149166452333809, 20564313304270211, 171388475477573948, 3077759439903425070]

cp's OEIS Frontend

A222766 Number of nX5 0..1 arrays with exactly floor(nX5/2) elements unequal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..1 order.

Table of values

List of values