A261375 - cp's OEIS frontend

A261375 Number of (n+2)X(3+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00001011 00010101 or 01010101.

n	a(n)
1	60
2	82
3	202
4	424
5	869
6	1714
7	3778
8	7462
9	15888
10	31618
11	68245
12	135058
13	290195
14	575938
15	1238957
16	2455954
17	5282429
18	10475722
19	22530337
20	44674906
21	96090169
22	190539730
23	409810129
24	812624530
25	1747814377
26	3465775738
27	7454228289
28	14781184618

[60, 82, 202, 424, 869, 1714, 3778, 7462, 15888, 31618, 68245, 135058, 290195, 575938, 1238957, 2455954, 5282429, 10475722, 22530337, 44674906, 96090169, 190539730, 409810129, 812624530, 1747814377, 3465775738, 7454228289, 14781184618]

cp's OEIS Frontend

A261375 Number of (n+2)X(3+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00001011 00010101 or 01010101.

Table of values

List of values