A205468 - cp's OEIS frontend

A205468 Number of (n+1) X 2 0..2 arrays with every 2 X 2 subblock having the same number of equal edges, and new values 0..2 introduced in row major order.

n	a(n)
1	14
2	48
3	175
4	677
5	2709
6	11143
7	46709
8	198483
9	851317
10	3674723
11	15929949
12	69254347
13	301652741
14	1315582371
15	5742416845
16	25079258843
17	109571246421
18	478835560339
19	2092898539805
20	9148671997707
21	39994487184037
22	174849254952131

[14, 48, 175, 677, 2709, 11143, 46709, 198483, 851317, 3674723, 15929949, 69254347, 301652741, 1315582371, 5742416845, 25079258843, 109571246421, 478835560339, 2092898539805, 9148671997707, 39994487184037, 174849254952131]

cp's OEIS Frontend

A205468 Number of (n+1) X 2 0..2 arrays with every 2 X 2 subblock having the same number of equal edges, and new values 0..2 introduced in row major order.

Table of values

List of values