A238371 - cp's OEIS frontend

A238371 a(1)=1; for n > 1, a(n) = the number of "topped" Mongean shuffles to reorder a stack of n cards to its original order.

n	a(n)
1	1
2	1
3	3
4	3
5	5
6	5
7	4
8	4
9	9
10	9
11	11
12	11
13	9
14	9
15	5
16	5
17	12
18	12
19	12
20	12
21	7
22	7
23	23
24	23
25	8
26	8
27	20
28	20
29	29
30	29
31	6
32	6
33	33
34	33
35	35
36	35
37	20
38	20
39	39
40	39
41	41
42	41
43	28
44	28
45	12
46	12
47	36
48	36
49	15
50	15
51	51
52	51
53	53
54	53
55	36
56	36
57	44
58	44
59	24
60	24
61	20
62	20
63	7
64	7
65	65
66	65
67	36
68	36
69	69
70	69
71	60
72	60
73	42
74	42
75	15
76	15
77	20
78	20
79	52
80	52
81	81
82	81
83	83
84	83
85	9
86	9
87	60
88	60

[1, 1, 3, 3, 5, 5, 4, 4, 9, 9, 11, 11, 9, 9, 5, 5, 12, 12, 12, 12, 7, 7, 23, 23, 8, 8, 20, 20, 29, 29, 6, 6, 33, 33, 35, 35, 20, 20, 39, 39, 41, 41, 28, 28, 12, 12, 36, 36, 15, 15, 51, 51, 53, 53, 36, 36, 44, 44, 24, 24, 20, 20, 7, 7, 65, 65, 36, 36, 69, 69, 60, 60, 42, 42, 15, 15, 20, 20, 52, 52, 81, 81, 83, 83, 9, 9, 60, 60]

cp's OEIS Frontend

A238371 a(1)=1; for n > 1, a(n) = the number of "topped" Mongean shuffles to reorder a stack of n cards to its original order.

Table of values

List of values

n	a(n)
1	1
2	1
3	3
4	3
5	5
6	5
7	4
8	4
9	9
10	9
11	11
12	11
13	9
14	9
15	5
16	5
17	12
18	12
19	12
20	12
21	7
22	7
23	23
24	23
25	8
26	8
27	20
28	20
29	29
30	29
31	6
32	6
33	33
34	33
35	35
36	35
37	20
38	20
39	39
40	39
41	41
42	41
43	28
44	28
45	12
46	12
47	36
48	36
49	15
50	15
51	51
52	51
53	53
54	53
55	36
56	36
57	44
58	44
59	24
60	24
61	20
62	20
63	7
64	7
65	65
66	65
67	36
68	36
69	69
70	69
71	60
72	60
73	42
74	42
75	15
76	15
77	20
78	20
79	52
80	52
81	81
82	81
83	83
84	83
85	9
86	9
87	60
88	60

n	a(n)
1	1
2	1
3	3
4	3
5	5
6	5
7	4
8	4
9	9
10	9
11	11
12	11
13	9
14	9
15	5
16	5
17	12
18	12
19	12
20	12
21	7
22	7
23	23
24	23
25	8
26	8
27	20
28	20
29	29
30	29
31	6
32	6
33	33
34	33
35	35
36	35
37	20
38	20
39	39
40	39
41	41
42	41
43	28
44	28
45	12
46	12
47	36
48	36
49	15
50	15
51	51
52	51
53	53
54	53
55	36
56	36
57	44
58	44
59	24
60	24
61	20
62	20
63	7
64	7
65	65
66	65
67	36
68	36
69	69
70	69
71	60
72	60
73	42
74	42
75	15
76	15
77	20
78	20
79	52
80	52
81	81
82	81
83	83
84	83
85	9
86	9
87	60
88	60

n	a(n)
1	1
2	1
3	3
4	3
5	5
6	5
7	4
8	4
9	9
10	9
11	11
12	11
13	9
14	9
15	5
16	5
17	12
18	12
19	12
20	12
21	7
22	7
23	23
24	23
25	8
26	8
27	20
28	20
29	29
30	29
31	6
32	6
33	33
34	33
35	35
36	35
37	20
38	20
39	39
40	39
41	41
42	41
43	28
44	28
45	12
46	12
47	36
48	36
49	15
50	15
51	51
52	51
53	53
54	53
55	36
56	36
57	44
58	44
59	24
60	24
61	20
62	20
63	7
64	7
65	65
66	65
67	36
68	36
69	69
70	69
71	60
72	60
73	42
74	42
75	15
76	15
77	20
78	20
79	52
80	52
81	81
82	81
83	83
84	83
85	9
86	9
87	60
88	60