A220324 - cp's OEIS frontend

A220324 Equals two maps: number of n X 3 binary arrays indicating the locations of corresponding elements equal to exactly two of their horizontal and antidiagonal neighbors in a random 0..1 n X 3 array.

n	a(n)
1	2
2	16
3	92
4	508
5	2788
6	15316
7	84196
8	462940
9	2545492
10	13996468
11	76959844
12	423164812
13	2326777444
14	12793817140
15	70346976484
16	386803802332
17	2126845944052
18	11694491219668
19	64302318307108
20	353567167818892
21	1944093859291588

[2, 16, 92, 508, 2788, 15316, 84196, 462940, 2545492, 13996468, 76959844, 423164812, 2326777444, 12793817140, 70346976484, 386803802332, 2126845944052, 11694491219668, 64302318307108, 353567167818892, 1944093859291588]

cp's OEIS Frontend

A220324 Equals two maps: number of n X 3 binary arrays indicating the locations of corresponding elements equal to exactly two of their horizontal and antidiagonal neighbors in a random 0..1 n X 3 array.

Table of values

List of values