A045625 - cp's OEIS frontend

A045625 Number of n-bead black-white reversible strings with fundamental period n.

n	a(n)
0	1
1	2
2	1
3	4
4	7
5	18
6	29
7	70
8	126
9	266
10	507
11	1054
12	2037
13	4158
14	8183
15	16488
16	32760
17	65790
18	131026
19	262654
20	524265
21	1049524
22	2097119
23	4196350
24	8388450
25	16781292
26	33554367
27	67116784
28	134217657
29	268451838
30	536870247
31	1073774590
32	2147483520

[1, 2, 1, 4, 7, 18, 29, 70, 126, 266, 507, 1054, 2037, 4158, 8183, 16488, 32760, 65790, 131026, 262654, 524265, 1049524, 2097119, 4196350, 8388450, 16781292, 33554367, 67116784, 134217657, 268451838, 536870247, 1073774590, 2147483520]

cp's OEIS Frontend

A045625 Number of n-bead black-white reversible strings with fundamental period n.

Table of values

List of values