A372640 - cp's OEIS frontend

A372640 Number T(n,k) of defective (binary) heaps on n elements from the set {0,1} where k ancestor-successor pairs do not have the correct order; triangle T(n,k), n>=0, read by rows.

n	a(n)
0	1
1	2
2	3
3	1
4	5
5	2
6	1
7	7
8	4
9	3
10	2
11	11
12	6
13	7
14	5
15	2
16	1
17	16
18	13
19	12
20	8
21	10
22	3
23	2
24	26
25	22
26	23
27	14
28	21
29	10
30	9
31	2
32	1
33	36
34	36
35	39
36	33
37	33
38	28
39	26
40	13
41	9
42	2
43	1
44	56
45	54
46	67
47	61
48	60
49	59
50	56
51	37
52	34
53	11
54	13
55	2
56	2
57	81
58	99
59	111
60	96
61	117
62	112
63	107
64	96
65	76
66	53
67	36
68	20
69	14
70	4
71	2

[1, 2, 3, 1, 5, 2, 1, 7, 4, 3, 2, 11, 6, 7, 5, 2, 1, 16, 13, 12, 8, 10, 3, 2, 26, 22, 23, 14, 21, 10, 9, 2, 1, 36, 36, 39, 33, 33, 28, 26, 13, 9, 2, 1, 56, 54, 67, 61, 60, 59, 56, 37, 34, 11, 13, 2, 2, 81, 99, 111, 96, 117, 112, 107, 96, 76, 53, 36, 20, 14, 4, 2]

cp's OEIS Frontend

A372640 Number T(n,k) of defective (binary) heaps on n elements from the set {0,1} where k ancestor-successor pairs do not have the correct order; triangle T(n,k), n>=0, read by rows.

Table of values

List of values

n	a(n)
0	1
1	2
2	3
3	1
4	5
5	2
6	1
7	7
8	4
9	3
10	2
11	11
12	6
13	7
14	5
15	2
16	1
17	16
18	13
19	12
20	8
21	10
22	3
23	2
24	26
25	22
26	23
27	14
28	21
29	10
30	9
31	2
32	1
33	36
34	36
35	39
36	33
37	33
38	28
39	26
40	13
41	9
42	2
43	1
44	56
45	54
46	67
47	61
48	60
49	59
50	56
51	37
52	34
53	11
54	13
55	2
56	2
57	81
58	99
59	111
60	96
61	117
62	112
63	107
64	96
65	76
66	53
67	36
68	20
69	14
70	4
71	2

n	a(n)
0	1
1	2
2	3
3	1
4	5
5	2
6	1
7	7
8	4
9	3
10	2
11	11
12	6
13	7
14	5
15	2
16	1
17	16
18	13
19	12
20	8
21	10
22	3
23	2
24	26
25	22
26	23
27	14
28	21
29	10
30	9
31	2
32	1
33	36
34	36
35	39
36	33
37	33
38	28
39	26
40	13
41	9
42	2
43	1
44	56
45	54
46	67
47	61
48	60
49	59
50	56
51	37
52	34
53	11
54	13
55	2
56	2
57	81
58	99
59	111
60	96
61	117
62	112
63	107
64	96
65	76
66	53
67	36
68	20
69	14
70	4
71	2

n	a(n)
0	1
1	2
2	3
3	1
4	5
5	2
6	1
7	7
8	4
9	3
10	2
11	11
12	6
13	7
14	5
15	2
16	1
17	16
18	13
19	12
20	8
21	10
22	3
23	2
24	26
25	22
26	23
27	14
28	21
29	10
30	9
31	2
32	1
33	36
34	36
35	39
36	33
37	33
38	28
39	26
40	13
41	9
42	2
43	1
44	56
45	54
46	67
47	61
48	60
49	59
50	56
51	37
52	34
53	11
54	13
55	2
56	2
57	81
58	99
59	111
60	96
61	117
62	112
63	107
64	96
65	76
66	53
67	36
68	20
69	14
70	4
71	2