A220932 - cp's OEIS frontend

A220932 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..2 n X 3 array.

n	a(n)
1	2
2	16
3	92
4	556
5	3332
6	19996
7	119972
8	719836
9	4319012
10	25914076
11	155484452
12	932906716
13	5597440292
14	33584641756
15	201507850532
16	1209047103196
17	7254282619172
18	43525695715036
19	261154174290212
20	1566925045741276

[2, 16, 92, 556, 3332, 19996, 119972, 719836, 4319012, 25914076, 155484452, 932906716, 5597440292, 33584641756, 201507850532, 1209047103196, 7254282619172, 43525695715036, 261154174290212, 1566925045741276]

cp's OEIS Frontend

A220932 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..2 n X 3 array.

Table of values

List of values