A100822 - cp's OEIS frontend

A100822 Triangle read by rows: T(n,k) is the number of deco polyominoes of height n with k cells in the first column. (A deco polyomino is a directed column-convex polyomino in which the height, measured along the diagonal, is attained only in the last column).

n	a(n)
1	1
2	1
3	1
4	2
5	3
6	1
7	6
8	8
9	9
10	1
11	24
12	30
13	32
14	33
15	1
16	120
17	144
18	150
19	152
20	153
21	1
22	720
23	840
24	864
25	870
26	872
27	873
28	1
29	5040
30	5760
31	5880
32	5904
33	5910
34	5912
35	5913
36	1
37	40320
38	45360
39	46080
40	46200
41	46224
42	46230
43	46232
44	46233
45	1
46	362880
47	403200
48	408240
49	408960
50	409080
51	409104
52	409110
53	409112
54	409113
55	1

[1, 1, 1, 2, 3, 1, 6, 8, 9, 1, 24, 30, 32, 33, 1, 120, 144, 150, 152, 153, 1, 720, 840, 864, 870, 872, 873, 1, 5040, 5760, 5880, 5904, 5910, 5912, 5913, 1, 40320, 45360, 46080, 46200, 46224, 46230, 46232, 46233, 1, 362880, 403200, 408240, 408960, 409080, 409104, 409110, 409112, 409113, 1]

cp's OEIS Frontend

A100822 Triangle read by rows: T(n,k) is the number of deco polyominoes of height n with k cells in the first column. (A deco polyomino is a directed column-convex polyomino in which the height, measured along the diagonal, is attained only in the last column).

Table of values

List of values