A284194 - cp's OEIS frontend

A284194 Number of n X 3 0..1 arrays with the number of 1's horizontally, antidiagonally or vertically adjacent to some 0 equal to the number of 0's adjacent to some 1, with top left element zero.

n	a(n)
1	3
2	13
3	43
4	412
5	1919
6	18842
7	105367
8	983238
9	6123441
10	54284366
11	362590384
12	3094974718
13	21686456978
14	180282797672
15	1306154902037
16	10663354100162
17	79101065751066
18	637908191485185
19	4812317630514559
20	38492627004755585

[3, 13, 43, 412, 1919, 18842, 105367, 983238, 6123441, 54284366, 362590384, 3094974718, 21686456978, 180282797672, 1306154902037, 10663354100162, 79101065751066, 637908191485185, 4812317630514559, 38492627004755585]

cp's OEIS Frontend

A284194 Number of n X 3 0..1 arrays with the number of 1's horizontally, antidiagonally or vertically adjacent to some 0 equal to the number of 0's adjacent to some 1, with top left element zero.

Table of values

List of values