A205409 - cp's OEIS frontend

A205409 Number of (n+2)X4 0..2 arrays with every 3X3 subblock having three equal elements in a row horizontally, vertically or nw-to-se diagonally exactly two ways, and new values 0..2 introduced in row major order.

n	a(n)
1	3868
2	44596
3	549414
4	5686031
5	64878898
6	768581101
7	8606465750
8	98080551694
9	1133347809296
10	12914400827409
11	147488385577992
12	1691863713691698
13	19345357758536500
14	221200783159493283
15	2532531552219620474

[3868, 44596, 549414, 5686031, 64878898, 768581101, 8606465750, 98080551694, 1133347809296, 12914400827409, 147488385577992, 1691863713691698, 19345357758536500, 221200783159493283, 2532531552219620474]

cp's OEIS Frontend

A205409 Number of (n+2)X4 0..2 arrays with every 3X3 subblock having three equal elements in a row horizontally, vertically or nw-to-se diagonally exactly two ways, and new values 0..2 introduced in row major order.

Table of values

List of values