A059866 - cp's OEIS frontend

A059866 Period of the continued fraction for sqrt(2^n-1).

n	a(n)
2	2
3	4
4	2
5	8
6	2
7	12
8	2
9	20
10	2
11	12
12	2
13	164
14	2
15	40
16	2
17	40
18	2
19	1208
20	2
21	660
22	2
23	1304
24	2
25	3056
26	2
27	2492
28	2
29	1080
30	2
31	13004
32	2
33	10232
34	2
35	11296
36	2
37	148736
38	2
39	56576
40	2
41	615482
42	2
43	44448
44	2
45	64
46	2
47	2628524
48	2
49	28219952
50	2
51	139558
52	2
53	3067080
54	2
55	2683626
56	2
57	90740360
58	2
59	103050292
60	2

[2, 4, 2, 8, 2, 12, 2, 20, 2, 12, 2, 164, 2, 40, 2, 40, 2, 1208, 2, 660, 2, 1304, 2, 3056, 2, 2492, 2, 1080, 2, 13004, 2, 10232, 2, 11296, 2, 148736, 2, 56576, 2, 615482, 2, 44448, 2, 64, 2, 2628524, 2, 28219952, 2, 139558, 2, 3067080, 2, 2683626, 2, 90740360, 2, 103050292, 2]

cp's OEIS Frontend

A059866 Period of the continued fraction for sqrt(2^n-1).

Table of values

List of values