A281206 - cp's OEIS frontend

A281206 Number of 2 X n 0..1 arrays with no element equal to more than one of its horizontal and antidiagonal neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards.

n	a(n)
1	0
2	2
3	14
4	28
5	52
6	94
7	166
8	290
9	502
10	864
11	1480
12	2526
13	4298
14	7294
15	12350
16	20868
17	35196
18	59262
19	99630
20	167258
21	280422
22	469576
23	785424
24	1312318
25	2190482
26	3652854
27	6086126
28	10131820
29	16853572
30	28013854
31	46531510
32	77237906
33	128126038
34	212413104

[0, 2, 14, 28, 52, 94, 166, 290, 502, 864, 1480, 2526, 4298, 7294, 12350, 20868, 35196, 59262, 99630, 167258, 280422, 469576, 785424, 1312318, 2190482, 3652854, 6086126, 10131820, 16853572, 28013854, 46531510, 77237906, 128126038, 212413104]

cp's OEIS Frontend

A281206 Number of 2 X n 0..1 arrays with no element equal to more than one of its horizontal and antidiagonal neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards.

Table of values

List of values