A309049 - cp's OEIS frontend

A309049 Number T(n,k) of (binary) max-heaps on n elements from the set {0,1} containing exactly k 0's; triangle T(n,k), n>=0, 0<=k<=n, read by rows.

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	1
6	1
7	2
8	1
9	1
10	1
11	2
12	2
13	1
14	1
15	1
16	3
17	3
18	2
19	1
20	1
21	1
22	3
23	4
24	4
25	2
26	1
27	1
28	1
29	4
30	6
31	6
32	5
33	2
34	1
35	1
36	1
37	4
38	7
39	8
40	7
41	5
42	2
43	1
44	1
45	1
46	5
47	10
48	12
49	11
50	8
51	5
52	2
53	1
54	1
55	1
56	5
57	11
58	16
59	17
60	13
61	9
62	5
63	2
64	1
65	1
66	1
67	6
68	15
69	23
70	27
71	24
72	16
73	10
74	5
75	2
76	1
77	1
78	1
79	6
80	16
81	27
82	34
83	34
84	27
85	18
86	11
87	5
88	2
89	1
90	1

[1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 2, 2, 1, 1, 1, 3, 3, 2, 1, 1, 1, 3, 4, 4, 2, 1, 1, 1, 4, 6, 6, 5, 2, 1, 1, 1, 4, 7, 8, 7, 5, 2, 1, 1, 1, 5, 10, 12, 11, 8, 5, 2, 1, 1, 1, 5, 11, 16, 17, 13, 9, 5, 2, 1, 1, 1, 6, 15, 23, 27, 24, 16, 10, 5, 2, 1, 1, 1, 6, 16, 27, 34, 34, 27, 18, 11, 5, 2, 1, 1]

cp's OEIS Frontend

A309049 Number T(n,k) of (binary) max-heaps on n elements from the set {0,1} containing exactly k 0's; triangle T(n,k), n>=0, 0<=k<=n, read by rows.

Table of values

List of values

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	1
6	1
7	2
8	1
9	1
10	1
11	2
12	2
13	1
14	1
15	1
16	3
17	3
18	2
19	1
20	1
21	1
22	3
23	4
24	4
25	2
26	1
27	1
28	1
29	4
30	6
31	6
32	5
33	2
34	1
35	1
36	1
37	4
38	7
39	8
40	7
41	5
42	2
43	1
44	1
45	1
46	5
47	10
48	12
49	11
50	8
51	5
52	2
53	1
54	1
55	1
56	5
57	11
58	16
59	17
60	13
61	9
62	5
63	2
64	1
65	1
66	1
67	6
68	15
69	23
70	27
71	24
72	16
73	10
74	5
75	2
76	1
77	1
78	1
79	6
80	16
81	27
82	34
83	34
84	27
85	18
86	11
87	5
88	2
89	1
90	1

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	1
6	1
7	2
8	1
9	1
10	1
11	2
12	2
13	1
14	1
15	1
16	3
17	3
18	2
19	1
20	1
21	1
22	3
23	4
24	4
25	2
26	1
27	1
28	1
29	4
30	6
31	6
32	5
33	2
34	1
35	1
36	1
37	4
38	7
39	8
40	7
41	5
42	2
43	1
44	1
45	1
46	5
47	10
48	12
49	11
50	8
51	5
52	2
53	1
54	1
55	1
56	5
57	11
58	16
59	17
60	13
61	9
62	5
63	2
64	1
65	1
66	1
67	6
68	15
69	23
70	27
71	24
72	16
73	10
74	5
75	2
76	1
77	1
78	1
79	6
80	16
81	27
82	34
83	34
84	27
85	18
86	11
87	5
88	2
89	1
90	1

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	1
6	1
7	2
8	1
9	1
10	1
11	2
12	2
13	1
14	1
15	1
16	3
17	3
18	2
19	1
20	1
21	1
22	3
23	4
24	4
25	2
26	1
27	1
28	1
29	4
30	6
31	6
32	5
33	2
34	1
35	1
36	1
37	4
38	7
39	8
40	7
41	5
42	2
43	1
44	1
45	1
46	5
47	10
48	12
49	11
50	8
51	5
52	2
53	1
54	1
55	1
56	5
57	11
58	16
59	17
60	13
61	9
62	5
63	2
64	1
65	1
66	1
67	6
68	15
69	23
70	27
71	24
72	16
73	10
74	5
75	2
76	1
77	1
78	1
79	6
80	16
81	27
82	34
83	34
84	27
85	18
86	11
87	5
88	2
89	1
90	1