A261867 - cp's OEIS frontend

A261867 Triangle T(n, k) read by rows (n >= 1, 1 <= k <= n), where row n gives the lexicographically first permutation of n cards that is a winning (or reformed) deck at Cayley's Mousetrap.

n	a(n)
1	1
2	1
3	2
4	1
5	3
6	2
7	1
8	2
9	4
10	3
11	1
12	2
13	5
14	3
15	4
16	1
17	2
18	4
19	3
20	6
21	5
22	1
23	2
24	3
25	7
26	6
27	5
28	4
29	1
30	2
31	3
32	5
33	8
34	4
35	6
36	7
37	1
38	2
39	3
40	4
41	8
42	5
43	7
44	9
45	6
46	1
47	2
48	3
49	4
50	6
51	9
52	8
53	7
54	10
55	5
56	1
57	2
58	3
59	4
60	6
61	7
62	5
63	11
64	8
65	10
66	9
67	1
68	2
69	3
70	4
71	5
72	8
73	10
74	6
75	12
76	9
77	11
78	7
79	1
80	2
81	3
82	4
83	5
84	6
85	9
86	12
87	7
88	10
89	13
90	11
91	8
92	1
93	2
94	3
95	4
96	5
97	6
98	10
99	9
100	14
101	13
102	8
103	11
104	12
105	7
106	1
107	2
108	3
109	4
110	5
111	6
112	8
113	9
114	12
115	7
116	14
117	10
118	15
119	13
120	11

[1, 1, 2, 1, 3, 2, 1, 2, 4, 3, 1, 2, 5, 3, 4, 1, 2, 4, 3, 6, 5, 1, 2, 3, 7, 6, 5, 4, 1, 2, 3, 5, 8, 4, 6, 7, 1, 2, 3, 4, 8, 5, 7, 9, 6, 1, 2, 3, 4, 6, 9, 8, 7, 10, 5, 1, 2, 3, 4, 6, 7, 5, 11, 8, 10, 9, 1, 2, 3, 4, 5, 8, 10, 6, 12, 9, 11, 7, 1, 2, 3, 4, 5, 6, 9, 12, 7, 10, 13, 11, 8, 1, 2, 3, 4, 5, 6, 10, 9, 14, 13, 8, 11, 12, 7, 1, 2, 3, 4, 5, 6, 8, 9, 12, 7, 14, 10, 15, 13, 11]

cp's OEIS Frontend

A261867 Triangle T(n, k) read by rows (n >= 1, 1 <= k <= n), where row n gives the lexicographically first permutation of n cards that is a winning (or reformed) deck at Cayley's Mousetrap.

Table of values

List of values

n	a(n)
1	1
2	1
3	2
4	1
5	3
6	2
7	1
8	2
9	4
10	3
11	1
12	2
13	5
14	3
15	4
16	1
17	2
18	4
19	3
20	6
21	5
22	1
23	2
24	3
25	7
26	6
27	5
28	4
29	1
30	2
31	3
32	5
33	8
34	4
35	6
36	7
37	1
38	2
39	3
40	4
41	8
42	5
43	7
44	9
45	6
46	1
47	2
48	3
49	4
50	6
51	9
52	8
53	7
54	10
55	5
56	1
57	2
58	3
59	4
60	6
61	7
62	5
63	11
64	8
65	10
66	9
67	1
68	2
69	3
70	4
71	5
72	8
73	10
74	6
75	12
76	9
77	11
78	7
79	1
80	2
81	3
82	4
83	5
84	6
85	9
86	12
87	7
88	10
89	13
90	11
91	8
92	1
93	2
94	3
95	4
96	5
97	6
98	10
99	9
100	14
101	13
102	8
103	11
104	12
105	7
106	1
107	2
108	3
109	4
110	5
111	6
112	8
113	9
114	12
115	7
116	14
117	10
118	15
119	13
120	11

n	a(n)
1	1
2	1
3	2
4	1
5	3
6	2
7	1
8	2
9	4
10	3
11	1
12	2
13	5
14	3
15	4
16	1
17	2
18	4
19	3
20	6
21	5
22	1
23	2
24	3
25	7
26	6
27	5
28	4
29	1
30	2
31	3
32	5
33	8
34	4
35	6
36	7
37	1
38	2
39	3
40	4
41	8
42	5
43	7
44	9
45	6
46	1
47	2
48	3
49	4
50	6
51	9
52	8
53	7
54	10
55	5
56	1
57	2
58	3
59	4
60	6
61	7
62	5
63	11
64	8
65	10
66	9
67	1
68	2
69	3
70	4
71	5
72	8
73	10
74	6
75	12
76	9
77	11
78	7
79	1
80	2
81	3
82	4
83	5
84	6
85	9
86	12
87	7
88	10
89	13
90	11
91	8
92	1
93	2
94	3
95	4
96	5
97	6
98	10
99	9
100	14
101	13
102	8
103	11
104	12
105	7
106	1
107	2
108	3
109	4
110	5
111	6
112	8
113	9
114	12
115	7
116	14
117	10
118	15
119	13
120	11

n	a(n)
1	1
2	1
3	2
4	1
5	3
6	2
7	1
8	2
9	4
10	3
11	1
12	2
13	5
14	3
15	4
16	1
17	2
18	4
19	3
20	6
21	5
22	1
23	2
24	3
25	7
26	6
27	5
28	4
29	1
30	2
31	3
32	5
33	8
34	4
35	6
36	7
37	1
38	2
39	3
40	4
41	8
42	5
43	7
44	9
45	6
46	1
47	2
48	3
49	4
50	6
51	9
52	8
53	7
54	10
55	5
56	1
57	2
58	3
59	4
60	6
61	7
62	5
63	11
64	8
65	10
66	9
67	1
68	2
69	3
70	4
71	5
72	8
73	10
74	6
75	12
76	9
77	11
78	7
79	1
80	2
81	3
82	4
83	5
84	6
85	9
86	12
87	7
88	10
89	13
90	11
91	8
92	1
93	2
94	3
95	4
96	5
97	6
98	10
99	9
100	14
101	13
102	8
103	11
104	12
105	7
106	1
107	2
108	3
109	4
110	5
111	6
112	8
113	9
114	12
115	7
116	14
117	10
118	15
119	13
120	11