A121298 - cp's OEIS frontend

A121298 Triangle read by rows: T(n,k) is the number of directed column-convex polyominoes of area n and height k (1<=k<=n; here by the height of a polyomino one means the number of lines of slope -1 that pass through the centers of the polyomino cells).

n	a(n)
1	1
2	0
3	2
4	0
5	1
6	4
7	0
8	0
9	5
10	8
11	0
12	0
13	3
14	15
15	16
16	0
17	0
18	1
19	17
20	39
21	32
22	0
23	0
24	0
25	15
26	59
27	95
28	64
29	0
30	0
31	0
32	9
33	75
34	175
35	223
36	128
37	0
38	0
39	0
40	4
41	78
42	269
43	479
44	511
45	256
46	0
47	0
48	0
49	1
50	67
51	358
52	845
53	1247
54	1151
55	512
56	0
57	0
58	0
59	0
60	48
61	419
62	1300
63	2461
64	3135
65	2559
66	1024
67	0
68	0
69	0
70	0
71	29
72	432
73	1801
74	4224
75	6813
76	7679
77	5631
78	2048

[1, 0, 2, 0, 1, 4, 0, 0, 5, 8, 0, 0, 3, 15, 16, 0, 0, 1, 17, 39, 32, 0, 0, 0, 15, 59, 95, 64, 0, 0, 0, 9, 75, 175, 223, 128, 0, 0, 0, 4, 78, 269, 479, 511, 256, 0, 0, 0, 1, 67, 358, 845, 1247, 1151, 512, 0, 0, 0, 0, 48, 419, 1300, 2461, 3135, 2559, 1024, 0, 0, 0, 0, 29, 432, 1801, 4224, 6813, 7679, 5631, 2048]

cp's OEIS Frontend

A121298 Triangle read by rows: T(n,k) is the number of directed column-convex polyominoes of area n and height k (1<=k<=n; here by the height of a polyomino one means the number of lines of slope -1 that pass through the centers of the polyomino cells).

Table of values

List of values