A205747 - cp's OEIS frontend

A205747 Number of (n+1)X3 0..2 arrays with every 2X2 subblock having the same number of equal edges as its horizontal neighbors and a different number from its vertical neighbors, and new values 0..2 introduced in row major order.

n	a(n)
1	48
2	284
3	1936
4	12384
5	82992
6	542718
7	3602578
8	23691830
9	156738676
10	1033041690
11	6824741078
12	45020426618
13	297261797768
14	1961609742846
15	12949334504402
16	85463493135422
17	564128280317020
18	3723357621326818
19	24576331604189646

[48, 284, 1936, 12384, 82992, 542718, 3602578, 23691830, 156738676, 1033041690, 6824741078, 45020426618, 297261797768, 1961609742846, 12949334504402, 85463493135422, 564128280317020, 3723357621326818, 24576331604189646]

cp's OEIS Frontend

A205747 Number of (n+1)X3 0..2 arrays with every 2X2 subblock having the same number of equal edges as its horizontal neighbors and a different number from its vertical neighbors, and new values 0..2 introduced in row major order.

Table of values

List of values