A240513 - cp's OEIS frontend

A240513 Number of n X 2 0..1 arrays with no element equal to exactly two horizontal and vertical neighbors, with new values 0..1 introduced in row major order.

n	a(n)
1	2
2	3
3	6
4	10
5	21
6	42
7	86
8	179
9	370
10	770
11	1601
12	3330
13	6930
14	14419
15	30006
16	62442
17	129941
18	270410
19	562726
20	1171043
21	2436962
22	5071362
23	10553601
24	21962242
25	45703842
26	95110563
27	197926886
28	411889610
29	857150101
30	1783745642
31	3712008566
32	7724760339

[2, 3, 6, 10, 21, 42, 86, 179, 370, 770, 1601, 3330, 6930, 14419, 30006, 62442, 129941, 270410, 562726, 1171043, 2436962, 5071362, 10553601, 21962242, 45703842, 95110563, 197926886, 411889610, 857150101, 1783745642, 3712008566, 7724760339]

cp's OEIS Frontend

A240513 Number of n X 2 0..1 arrays with no element equal to exactly two horizontal and vertical neighbors, with new values 0..1 introduced in row major order.

Table of values

List of values