A238373 - cp's OEIS frontend

A238373 The number of "topped inward" shuffles to reorder a stack of n cards to its original order.

n	a(n)
3	3
4	4
5	2
6	4
7	7
8	12
9	9
10	8
11	21
12	12
13	15
14	15
15	30
16	16
17	30
18	40
19	35
20	60
21	21
22	57
23	24
24	24
25	90
26	63
27	27
28	28
29	12
30	12
31	31
32	220
33	33
34	63
35	180
36	420
37	37
38	225
39	39
40	24
41	182
42	99
43	60
44	40
45	306
46	264
47	195
48	48
49	49
50	60
51	51
52	144
53	306
54	84
55	462
56	60
57	264
58	265
59	180
60	240
61	35
62	35
63	63
64	144
65	612
66	544
67	67
68	1012
69	870
70	84
71	840
72	72
73	195
74	264
75	180
76	312
77	650
78	1023
79	79
80	180
81	81
82	228
83	63
84	84
85	1740
86	783
87	87
88	88

[3, 4, 2, 4, 7, 12, 9, 8, 21, 12, 15, 15, 30, 16, 30, 40, 35, 60, 21, 57, 24, 24, 90, 63, 27, 28, 12, 12, 31, 220, 33, 63, 180, 420, 37, 225, 39, 24, 182, 99, 60, 40, 306, 264, 195, 48, 49, 60, 51, 144, 306, 84, 462, 60, 264, 265, 180, 240, 35, 35, 63, 144, 612, 544, 67, 1012, 870, 84, 840, 72, 195, 264, 180, 312, 650, 1023, 79, 180, 81, 228, 63, 84, 1740, 783, 87, 88]

cp's OEIS Frontend

A238373 The number of "topped inward" shuffles to reorder a stack of n cards to its original order.

Table of values

List of values