A289386 - cp's OEIS frontend

A289386 Number of rounds of 'deal one, skip one' shuffling required to return a deck of n cards to its original order.

n	a(n)
1	1
2	2
3	3
4	2
5	5
6	6
7	5
8	4
9	6
10	6
11	15
12	12
13	12
14	30
15	15
16	4
17	17
18	18
19	10
20	20
21	21
22	14
23	24
24	90
25	63
26	26
27	27
28	18
29	66
30	12
31	210
32	12
33	33
34	90
35	35
36	30
37	110
38	120
39	120
40	26
41	41
42	42
43	105
44	30
45	45
46	30
47	60
48	48
49	120
50	50
51	42
52	510
53	53
54	1680
55	120
56	1584
57	57
58	336
59	276
60	60
61	2665
62	720
63	8415

[1, 2, 3, 2, 5, 6, 5, 4, 6, 6, 15, 12, 12, 30, 15, 4, 17, 18, 10, 20, 21, 14, 24, 90, 63, 26, 27, 18, 66, 12, 210, 12, 33, 90, 35, 30, 110, 120, 120, 26, 41, 42, 105, 30, 45, 30, 60, 48, 120, 50, 42, 510, 53, 1680, 120, 1584, 57, 336, 276, 60, 2665, 720, 8415]

cp's OEIS Frontend

A289386 Number of rounds of 'deal one, skip one' shuffling required to return a deck of n cards to its original order.

Table of values

List of values