A105306 - cp's OEIS frontend

A105306 Triangle read by rows: T(n,k) is the number of directed column-convex polyominoes of area n, having the top of the rightmost column at height k.

n	a(n)
1	1
2	1
3	1
4	2
5	2
6	1
7	4
8	5
9	3
10	1
11	8
12	12
13	9
14	4
15	1
16	16
17	28
18	25
19	14
20	5
21	1
22	32
23	64
24	66
25	44
26	20
27	6
28	1
29	64
30	144
31	168
32	129
33	70
34	27
35	7
36	1
37	128
38	320
39	416
40	360
41	225
42	104
43	35
44	8
45	1
46	256
47	704
48	1008
49	968
50	681
51	363
52	147
53	44
54	9
55	1
56	512
57	1536
58	2400
59	2528
60	1970
61	1182
62	553
63	200
64	54
65	10
66	1
67	1024

[1, 1, 1, 2, 2, 1, 4, 5, 3, 1, 8, 12, 9, 4, 1, 16, 28, 25, 14, 5, 1, 32, 64, 66, 44, 20, 6, 1, 64, 144, 168, 129, 70, 27, 7, 1, 128, 320, 416, 360, 225, 104, 35, 8, 1, 256, 704, 1008, 968, 681, 363, 147, 44, 9, 1, 512, 1536, 2400, 2528, 1970, 1182, 553, 200, 54, 10, 1, 1024]

cp's OEIS Frontend

A105306 Triangle read by rows: T(n,k) is the number of directed column-convex polyominoes of area n, having the top of the rightmost column at height k.

Table of values

List of values