A380195 - cp's OEIS frontend

A380195 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-down dealing is used, then the resulting cards will be dealt in increasing order.

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

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

cp's OEIS Frontend

A380195 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-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	1
3	2
4	2
5	3
6	1
7	4
8	2
9	1
10	3
11	2
12	4
13	1
14	5
15	3
16	6
17	4
18	1
19	3
20	5
21	2
22	6
23	3
24	1
25	7
26	5
27	2
28	4
29	3
30	5
31	1
32	7
33	4
34	2
35	8
36	6
37	9
38	7
39	1
40	4
41	6
42	2
43	8
44	5
45	3
46	6
47	4
48	1
49	10
50	8
51	2
52	5
53	7
54	3
55	9
56	4
57	10
58	1
59	7
60	5
61	2
62	11
63	9
64	3
65	6
66	8
67	7
68	9
69	1
70	5
71	11
72	2
73	8
74	6
75	3
76	12
77	10
78	4
79	11
80	5
81	1
82	8
83	10
84	2
85	6
86	12
87	3
88	9
89	7
90	4
91	13

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

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