A281202 - cp's OEIS frontend

A281202 Number of n X 5 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	5
2	52
3	176
4	470
5	1141
6	2602
7	5712
8	12208
9	25577
10	52784
11	107636
12	217370
13	435473
14	866550
15	1714460
16	3375236
17	6616061
18	12919308
19	25142632
20	48783294
21	94395997
22	182209890
23	350933080
24	674521464
25	1294078657
26	2478473672
27	4739410828

[5, 52, 176, 470, 1141, 2602, 5712, 12208, 25577, 52784, 107636, 217370, 435473, 866550, 1714460, 3375236, 6616061, 12919308, 25142632, 48783294, 94395997, 182209890, 350933080, 674521464, 1294078657, 2478473672, 4739410828]

cp's OEIS Frontend

A281202 Number of n X 5 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