A306343 - cp's OEIS frontend

A306343 Number T(n,k) of defective (binary) heaps on n elements with k defects; triangle T(n,k), n>=0, 0<=k<=max(0,n-1), read by rows.

n	a(n)
0	1
1	1
2	1
3	1
4	2
5	2
6	2
7	3
8	9
9	9
10	3
11	8
12	28
13	48
14	28
15	8
16	20
17	90
18	250
19	250
20	90
21	20
22	80
23	360
24	1200
25	1760
26	1200
27	360
28	80
29	210
30	1526
31	5922
32	12502
33	12502
34	5922
35	1526
36	210
37	896
38	7616
39	34160
40	82880
41	111776
42	82880
43	34160
44	7616
45	896
46	3360
47	32460
48	185460
49	576060
50	1017060
51	1017060
52	576060
53	185460
54	32460
55	3360

[1, 1, 1, 1, 2, 2, 2, 3, 9, 9, 3, 8, 28, 48, 28, 8, 20, 90, 250, 250, 90, 20, 80, 360, 1200, 1760, 1200, 360, 80, 210, 1526, 5922, 12502, 12502, 5922, 1526, 210, 896, 7616, 34160, 82880, 111776, 82880, 34160, 7616, 896, 3360, 32460, 185460, 576060, 1017060, 1017060, 576060, 185460, 32460, 3360]

cp's OEIS Frontend

A306343 Number T(n,k) of defective (binary) heaps on n elements with k defects; triangle T(n,k), n>=0, 0<=k<=max(0,n-1), read by rows.

Table of values

List of values