A209721 - cp's OEIS frontend

A209721 1/4 the number of (n+1) X 3 0..2 arrays with every 2 X 2 subblock having distinct clockwise edge differences.

n	a(n)
1	3
2	4
3	5
4	7
5	9
6	13
7	17
8	25
9	33
10	49
11	65
12	97
13	129
14	193
15	257
16	385
17	513
18	769
19	1025
20	1537
21	2049
22	3073
23	4097
24	6145
25	8193
26	12289
27	16385
28	24577
29	32769
30	49153
31	65537
32	98305
33	131073
34	196609
35	262145
36	393217
37	524289
38	786433
39	1048577
40	1572865
41	2097153
42	3145729

[3, 4, 5, 7, 9, 13, 17, 25, 33, 49, 65, 97, 129, 193, 257, 385, 513, 769, 1025, 1537, 2049, 3073, 4097, 6145, 8193, 12289, 16385, 24577, 32769, 49153, 65537, 98305, 131073, 196609, 262145, 393217, 524289, 786433, 1048577, 1572865, 2097153, 3145729]

cp's OEIS Frontend

A209721 1/4 the number of (n+1) X 3 0..2 arrays with every 2 X 2 subblock having distinct clockwise edge differences.

Table of values

List of values