A379638 - cp's OEIS frontend

A379638 Triangle read by rows: T(n,k) is the sum of the lengths of the free polyominoes with n cells and length k, n >= 1, k >= 1.

n	a(n)
1	1
2	0
3	2
4	0
5	2
6	3
7	0
8	2
9	9
10	4
11	0
12	0
13	24
14	12
15	5
16	0
17	0
18	24
19	84
20	25
21	6
22	0
23	0
24	21
25	236
26	180
27	30
28	7
29	0
30	0
31	9
32	548
33	835
34	324
35	49
36	8
37	0
38	0
39	3
40	892
41	3345
42	1842
43	539
44	56
45	9
46	0
47	0
48	0
49	1148
50	10445
51	9762
52	3773
53	824
54	81
55	10
56	0
57	0
58	0
59	1020
60	27360
61	42756
62	22659
63	6712
64	1206
65	90
66	11
67	0
68	0
69	0
70	676
71	59595
72	165024
73	116942
74	46808
75	11439
76	1680
77	121
78	12

[1, 0, 2, 0, 2, 3, 0, 2, 9, 4, 0, 0, 24, 12, 5, 0, 0, 24, 84, 25, 6, 0, 0, 21, 236, 180, 30, 7, 0, 0, 9, 548, 835, 324, 49, 8, 0, 0, 3, 892, 3345, 1842, 539, 56, 9, 0, 0, 0, 1148, 10445, 9762, 3773, 824, 81, 10, 0, 0, 0, 1020, 27360, 42756, 22659, 6712, 1206, 90, 11, 0, 0, 0, 676, 59595, 165024, 116942, 46808, 11439, 1680, 121, 12]

cp's OEIS Frontend

A379638 Triangle read by rows: T(n,k) is the sum of the lengths of the free polyominoes with n cells and length k, n >= 1, k >= 1.

Table of values

List of values