A360289 - cp's OEIS frontend

A360289 Number T(n,k) of permutations of [n] whose excedance set is the k-th finite subset of positive integers in Gray order; triangle T(n,k), n>=0, 0<=k<=ceiling(2^(n-1))-1, read by rows.

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	3
6	1
7	1
8	1
9	7
10	7
11	3
12	1
13	1
14	3
15	1
16	1
17	15
18	31
19	7
20	7
21	15
22	17
23	3
24	1
25	3
26	1
27	1
28	3
29	7
30	7
31	1
32	1
33	31
34	115
35	15
36	31
37	115
38	69
39	7
40	7
41	37
42	31
43	15
44	17
45	69
46	37
47	3
48	1
49	7
50	7
51	3
52	1
53	1
54	3
55	1
56	3
57	17
58	15
59	7
60	7
61	31
62	15
63	1
64	1
65	63
66	391
67	31
68	115
69	675
70	245
71	15
72	31
73	261
74	391

[1, 1, 1, 1, 1, 3, 1, 1, 1, 7, 7, 3, 1, 1, 3, 1, 1, 15, 31, 7, 7, 15, 17, 3, 1, 3, 1, 1, 3, 7, 7, 1, 1, 31, 115, 15, 31, 115, 69, 7, 7, 37, 31, 15, 17, 69, 37, 3, 1, 7, 7, 3, 1, 1, 3, 1, 3, 17, 15, 7, 7, 31, 15, 1, 1, 63, 391, 31, 115, 675, 245, 15, 31, 261, 391]

cp's OEIS Frontend

A360289 Number T(n,k) of permutations of [n] whose excedance set is the k-th finite subset of positive integers in Gray order; triangle T(n,k), n>=0, 0<=k<=ceiling(2^(n-1))-1, read by rows.

Table of values

List of values

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	3
6	1
7	1
8	1
9	7
10	7
11	3
12	1
13	1
14	3
15	1
16	1
17	15
18	31
19	7
20	7
21	15
22	17
23	3
24	1
25	3
26	1
27	1
28	3
29	7
30	7
31	1
32	1
33	31
34	115
35	15
36	31
37	115
38	69
39	7
40	7
41	37
42	31
43	15
44	17
45	69
46	37
47	3
48	1
49	7
50	7
51	3
52	1
53	1
54	3
55	1
56	3
57	17
58	15
59	7
60	7
61	31
62	15
63	1
64	1
65	63
66	391
67	31
68	115
69	675
70	245
71	15
72	31
73	261
74	391

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	3
6	1
7	1
8	1
9	7
10	7
11	3
12	1
13	1
14	3
15	1
16	1
17	15
18	31
19	7
20	7
21	15
22	17
23	3
24	1
25	3
26	1
27	1
28	3
29	7
30	7
31	1
32	1
33	31
34	115
35	15
36	31
37	115
38	69
39	7
40	7
41	37
42	31
43	15
44	17
45	69
46	37
47	3
48	1
49	7
50	7
51	3
52	1
53	1
54	3
55	1
56	3
57	17
58	15
59	7
60	7
61	31
62	15
63	1
64	1
65	63
66	391
67	31
68	115
69	675
70	245
71	15
72	31
73	261
74	391

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	3
6	1
7	1
8	1
9	7
10	7
11	3
12	1
13	1
14	3
15	1
16	1
17	15
18	31
19	7
20	7
21	15
22	17
23	3
24	1
25	3
26	1
27	1
28	3
29	7
30	7
31	1
32	1
33	31
34	115
35	15
36	31
37	115
38	69
39	7
40	7
41	37
42	31
43	15
44	17
45	69
46	37
47	3
48	1
49	7
50	7
51	3
52	1
53	1
54	3
55	1
56	3
57	17
58	15
59	7
60	7
61	31
62	15
63	1
64	1
65	63
66	391
67	31
68	115
69	675
70	245
71	15
72	31
73	261
74	391