A199126 - cp's OEIS frontend

A199126 Number of nX1 0..2 arrays with values 0..2 introduced in row major order, the number of instances of each value within one of each other, and no element equal to any horizontal or vertical neighbor.

n	a(n)
1	1
2	1
3	1
4	3
5	6
6	5
7	19
8	37
9	29
10	124
11	240
12	182
13	834
14	1614
15	1198
16	5746
17	11137
18	8142
19	40336
20	78332
21	56620
22	287358
23	559134
24	400598
25	2071558
26	4038130
27	2872754
28	15079270
29	29443040
30	20824778
31	110653854
32	216379650
33	152303410
34	817542980
35	1600817660

[1, 1, 1, 3, 6, 5, 19, 37, 29, 124, 240, 182, 834, 1614, 1198, 5746, 11137, 8142, 40336, 78332, 56620, 287358, 559134, 400598, 2071558, 4038130, 2872754, 15079270, 29443040, 20824778, 110653854, 216379650, 152303410, 817542980, 1600817660]

cp's OEIS Frontend

A199126 Number of nX1 0..2 arrays with values 0..2 introduced in row major order, the number of instances of each value within one of each other, and no element equal to any horizontal or vertical neighbor.

Table of values

List of values