A384770 - cp's OEIS frontend

A384770 Triangle T(n,k) read by rows, where row n is a permutation of the numbers 1 through n, such that if a deck of n cards is prepared in this order, and under-under-under-down dealing is used, then the resulting cards will be dealt in increasing order.

n	a(n)
1	1
2	2
3	1
4	1
5	3
6	2
7	2
8	4
9	3
10	1
11	5
12	4
13	2
14	1
15	3
16	3
17	2
18	4
19	1
20	6
21	5
22	2
23	7
24	6
25	1
26	4
27	3
28	5
29	5
30	4
31	6
32	1
33	3
34	8
35	7
36	2
37	9
38	8
39	3
40	1
41	6
42	5
43	7
44	2
45	4
46	8
47	3
48	5
49	1
50	10
51	9
52	4
53	2
54	7
55	6
56	3
57	8
58	7
59	1
60	9
61	4
62	6
63	2
64	11
65	10
66	5
67	12
68	11
69	6
70	1
71	4
72	9
73	8
74	2
75	10
76	5
77	7
78	3
79	6
80	8
81	4
82	1
83	13
84	12
85	7
86	2
87	5
88	10
89	9
90	3
91	11

[1, 2, 1, 1, 3, 2, 2, 4, 3, 1, 5, 4, 2, 1, 3, 3, 2, 4, 1, 6, 5, 2, 7, 6, 1, 4, 3, 5, 5, 4, 6, 1, 3, 8, 7, 2, 9, 8, 3, 1, 6, 5, 7, 2, 4, 8, 3, 5, 1, 10, 9, 4, 2, 7, 6, 3, 8, 7, 1, 9, 4, 6, 2, 11, 10, 5, 12, 11, 6, 1, 4, 9, 8, 2, 10, 5, 7, 3, 6, 8, 4, 1, 13, 12, 7, 2, 5, 10, 9, 3, 11]

cp's OEIS Frontend

A384770 Triangle T(n,k) read by rows, where row n is a permutation of the numbers 1 through n, such that if a deck of n cards is prepared in this order, and under-under-under-down dealing is used, then the resulting cards will be dealt in increasing order.

Table of values

List of values

n	a(n)
1	1
2	2
3	1
4	1
5	3
6	2
7	2
8	4
9	3
10	1
11	5
12	4
13	2
14	1
15	3
16	3
17	2
18	4
19	1
20	6
21	5
22	2
23	7
24	6
25	1
26	4
27	3
28	5
29	5
30	4
31	6
32	1
33	3
34	8
35	7
36	2
37	9
38	8
39	3
40	1
41	6
42	5
43	7
44	2
45	4
46	8
47	3
48	5
49	1
50	10
51	9
52	4
53	2
54	7
55	6
56	3
57	8
58	7
59	1
60	9
61	4
62	6
63	2
64	11
65	10
66	5
67	12
68	11
69	6
70	1
71	4
72	9
73	8
74	2
75	10
76	5
77	7
78	3
79	6
80	8
81	4
82	1
83	13
84	12
85	7
86	2
87	5
88	10
89	9
90	3
91	11

n	a(n)
1	1
2	2
3	1
4	1
5	3
6	2
7	2
8	4
9	3
10	1
11	5
12	4
13	2
14	1
15	3
16	3
17	2
18	4
19	1
20	6
21	5
22	2
23	7
24	6
25	1
26	4
27	3
28	5
29	5
30	4
31	6
32	1
33	3
34	8
35	7
36	2
37	9
38	8
39	3
40	1
41	6
42	5
43	7
44	2
45	4
46	8
47	3
48	5
49	1
50	10
51	9
52	4
53	2
54	7
55	6
56	3
57	8
58	7
59	1
60	9
61	4
62	6
63	2
64	11
65	10
66	5
67	12
68	11
69	6
70	1
71	4
72	9
73	8
74	2
75	10
76	5
77	7
78	3
79	6
80	8
81	4
82	1
83	13
84	12
85	7
86	2
87	5
88	10
89	9
90	3
91	11

n	a(n)
1	1
2	2
3	1
4	1
5	3
6	2
7	2
8	4
9	3
10	1
11	5
12	4
13	2
14	1
15	3
16	3
17	2
18	4
19	1
20	6
21	5
22	2
23	7
24	6
25	1
26	4
27	3
28	5
29	5
30	4
31	6
32	1
33	3
34	8
35	7
36	2
37	9
38	8
39	3
40	1
41	6
42	5
43	7
44	2
45	4
46	8
47	3
48	5
49	1
50	10
51	9
52	4
53	2
54	7
55	6
56	3
57	8
58	7
59	1
60	9
61	4
62	6
63	2
64	11
65	10
66	5
67	12
68	11
69	6
70	1
71	4
72	9
73	8
74	2
75	10
76	5
77	7
78	3
79	6
80	8
81	4
82	1
83	13
84	12
85	7
86	2
87	5
88	10
89	9
90	3
91	11