A281207 - cp's OEIS frontend

A281207 Number of 3 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	10
3	56
4	98
5	176
6	310
7	537
8	922
9	1573
10	2672
11	4524
12	7640
13	12875
14	21658
15	36375
16	61006
17	102184
18	170954
19	285693
20	476954
21	795497
22	1325596
23	2207076
24	3671788
25	6103951
26	10139930
27	16833147
28	27926522
29	46302368
30	76725022
31	127066209
32	210326170

[0, 10, 56, 98, 176, 310, 537, 922, 1573, 2672, 4524, 7640, 12875, 21658, 36375, 61006, 102184, 170954, 285693, 476954, 795497, 1325596, 2207076, 3671788, 6103951, 10139930, 16833147, 27926522, 46302368, 76725022, 127066209, 210326170]

cp's OEIS Frontend

A281207 Number of 3 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