A239150 - cp's OEIS frontend

A239150 Number of (n+1) X (1+1) 0..3 arrays with no element equal to all horizontal neighbors or unequal to all vertical neighbors, and new values 0..3 introduced in row major order.

n	a(n)
1	1
2	1
3	7
4	17
5	96
6	340
7	1639
8	6623
9	29843
10	126163
11	554310
12	2380524
13	10363965
14	44756085
15	194216303
16	840357677
17	3642433780
18	15771490916
19	68331367227
20	295943443667
21	1282011757819
22	5552887116543
23	24053558944522
24	104188496250108

[1, 1, 7, 17, 96, 340, 1639, 6623, 29843, 126163, 554310, 2380524, 10363965, 44756085, 194216303, 840357677, 3642433780, 15771490916, 68331367227, 295943443667, 1282011757819, 5552887116543, 24053558944522, 104188496250108]

cp's OEIS Frontend

A239150 Number of (n+1) X (1+1) 0..3 arrays with no element equal to all horizontal neighbors or unequal to all vertical neighbors, and new values 0..3 introduced in row major order.

Table of values

List of values