A379625 - cp's OEIS frontend

A379625 Triangle read by rows: T(n,k) is the number of free polyominoes with n cells whose difference between length and width is k, n >= 1, k >= 0.

n	a(n)
1	1
2	0
3	1
4	1
5	0
6	1
7	1
8	3
9	0
10	1
11	6
12	2
13	3
14	0
15	1
16	7
17	16
18	6
19	5
20	0
21	1
22	25
23	39
24	27
25	11
26	5
27	0
28	1
29	80
30	120
31	97
32	45
33	19
34	7
35	0
36	1
37	255
38	425
39	307
40	191
41	71
42	28
43	7
44	0
45	1
46	795
47	1565
48	1077
49	706
50	347
51	115
52	40
53	9
54	0
55	1
56	2919
57	5217
58	4170
59	2505
60	1454
61	574
62	171
63	53
64	9
65	0
66	1
67	10378
68	18511
69	15164
70	10069
71	5481
72	2740
73	919
74	257
75	69
76	11
77	0
78	1

[1, 0, 1, 1, 0, 1, 1, 3, 0, 1, 6, 2, 3, 0, 1, 7, 16, 6, 5, 0, 1, 25, 39, 27, 11, 5, 0, 1, 80, 120, 97, 45, 19, 7, 0, 1, 255, 425, 307, 191, 71, 28, 7, 0, 1, 795, 1565, 1077, 706, 347, 115, 40, 9, 0, 1, 2919, 5217, 4170, 2505, 1454, 574, 171, 53, 9, 0, 1, 10378, 18511, 15164, 10069, 5481, 2740, 919, 257, 69, 11, 0, 1]

cp's OEIS Frontend

A379625 Triangle read by rows: T(n,k) is the number of free polyominoes with n cells whose difference between length and width is k, n >= 1, k >= 0.

Table of values

List of values