A222451 - cp's OEIS frontend

A222451 Number of nX3 0..1 arrays with exactly floor(nX3/2) elements unequal to at least one horizontal, vertical or antidiagonal neighbor, with new values introduced in row major 0..1 order.

n	a(n)
1	0
2	2
3	2
4	17
5	27
6	194
7	467
8	2375
9	6320
10	31706
11	84949
12	426134
13	1133626
14	5776492
15	15176513
16	78547862
17	204559282
18	1071259196
19	2775207035
20	14655072445
21	37875592694
22	201114091282
23	519500141148
24	2768445005172
25	7154712147158

[0, 2, 2, 17, 27, 194, 467, 2375, 6320, 31706, 84949, 426134, 1133626, 5776492, 15176513, 78547862, 204559282, 1071259196, 2775207035, 14655072445, 37875592694, 201114091282, 519500141148, 2768445005172, 7154712147158]

cp's OEIS Frontend

A222451 Number of nX3 0..1 arrays with exactly floor(nX3/2) elements unequal to at least one horizontal, vertical or antidiagonal neighbor, with new values introduced in row major 0..1 order.

Table of values

List of values