A268784 - cp's OEIS frontend

A268784 Number of n X 3 binary arrays with some element plus some horizontally, vertically or antidiagonally adjacent neighbor totalling two exactly once.

n	a(n)
1	2
2	17
3	72
4	302
5	1144
6	4207
7	14984
8	52335
9	179854
10	610504
11	2051436
12	6836258
13	22622554
14	74418562
15	243553160
16	793537401
17	2575357784
18	8329124488
19	26854438804
20	86342760711
21	276915214344
22	886094782671
23	2829527431748
24	9018299661270

[2, 17, 72, 302, 1144, 4207, 14984, 52335, 179854, 610504, 2051436, 6836258, 22622554, 74418562, 243553160, 793537401, 2575357784, 8329124488, 26854438804, 86342760711, 276915214344, 886094782671, 2829527431748, 9018299661270]

cp's OEIS Frontend

A268784 Number of n X 3 binary arrays with some element plus some horizontally, vertically or antidiagonally adjacent neighbor totalling two exactly once.

Table of values

List of values