A263753 - cp's OEIS frontend

A263753 Triangle read by rows: T(n,k) (n>=0, k>=0) is the number of permutations of n with sum of descent tops equal to k.

n	a(n)
0	1
1	1
2	1
3	0
4	1
5	1
6	0
7	1
8	3
9	0
10	1
11	1
12	0
13	1
14	3
15	7
16	1
17	3
18	7
19	0
20	1
21	1
22	0
23	1
24	3
25	7
26	16
27	3
28	14
29	17
30	32
31	3
32	7
33	15
34	0
35	1
36	1
37	0
38	1
39	3
40	7
41	16
42	34
43	14
44	32
45	69
46	72
47	129
48	32
49	68
50	70
51	118
52	7
53	15
54	31
55	0
56	1
57	1
58	0
59	1
60	3
61	7
62	16
63	34
64	77
65	32
66	100
67	149
68	274
69	292
70	496
71	220
72	388
73	536

[1, 1, 1, 0, 1, 1, 0, 1, 3, 0, 1, 1, 0, 1, 3, 7, 1, 3, 7, 0, 1, 1, 0, 1, 3, 7, 16, 3, 14, 17, 32, 3, 7, 15, 0, 1, 1, 0, 1, 3, 7, 16, 34, 14, 32, 69, 72, 129, 32, 68, 70, 118, 7, 15, 31, 0, 1, 1, 0, 1, 3, 7, 16, 34, 77, 32, 100, 149, 274, 292, 496, 220, 388, 536]

cp's OEIS Frontend

A263753 Triangle read by rows: T(n,k) (n>=0, k>=0) is the number of permutations of n with sum of descent tops equal to k.

Table of values

List of values

n	a(n)
0	1
1	1
2	1
3	0
4	1
5	1
6	0
7	1
8	3
9	0
10	1
11	1
12	0
13	1
14	3
15	7
16	1
17	3
18	7
19	0
20	1
21	1
22	0
23	1
24	3
25	7
26	16
27	3
28	14
29	17
30	32
31	3
32	7
33	15
34	0
35	1
36	1
37	0
38	1
39	3
40	7
41	16
42	34
43	14
44	32
45	69
46	72
47	129
48	32
49	68
50	70
51	118
52	7
53	15
54	31
55	0
56	1
57	1
58	0
59	1
60	3
61	7
62	16
63	34
64	77
65	32
66	100
67	149
68	274
69	292
70	496
71	220
72	388
73	536

n	a(n)
0	1
1	1
2	1
3	0
4	1
5	1
6	0
7	1
8	3
9	0
10	1
11	1
12	0
13	1
14	3
15	7
16	1
17	3
18	7
19	0
20	1
21	1
22	0
23	1
24	3
25	7
26	16
27	3
28	14
29	17
30	32
31	3
32	7
33	15
34	0
35	1
36	1
37	0
38	1
39	3
40	7
41	16
42	34
43	14
44	32
45	69
46	72
47	129
48	32
49	68
50	70
51	118
52	7
53	15
54	31
55	0
56	1
57	1
58	0
59	1
60	3
61	7
62	16
63	34
64	77
65	32
66	100
67	149
68	274
69	292
70	496
71	220
72	388
73	536

n	a(n)
0	1
1	1
2	1
3	0
4	1
5	1
6	0
7	1
8	3
9	0
10	1
11	1
12	0
13	1
14	3
15	7
16	1
17	3
18	7
19	0
20	1
21	1
22	0
23	1
24	3
25	7
26	16
27	3
28	14
29	17
30	32
31	3
32	7
33	15
34	0
35	1
36	1
37	0
38	1
39	3
40	7
41	16
42	34
43	14
44	32
45	69
46	72
47	129
48	32
49	68
50	70
51	118
52	7
53	15
54	31
55	0
56	1
57	1
58	0
59	1
60	3
61	7
62	16
63	34
64	77
65	32
66	100
67	149
68	274
69	292
70	496
71	220
72	388
73	536