A080061 - cp's OEIS frontend

A080061 Triangle of coefficients of polynomials P(n; x) = Permanent(M), where M=[m(i,j)] is n X n matrix defined by m(i,j)=x if 0<=i-j<=2 else m(i,j)=1.

n	a(n)
0	1
1	0
2	1
3	0
4	1
5	1
6	0
7	1
8	4
9	1
10	1
11	4
12	8
13	10
14	1
15	5
16	21
17	38
18	34
19	21
20	1
21	33
22	122
23	209
24	206
25	109
26	40
27	1
28	236
29	849
30	1400
31	1351
32	836
33	295
34	72
35	1
36	1918
37	6719
38	10849
39	10543
40	6629
41	2821
42	715
43	125
44	1
45	17440
46	59873
47	95516
48	92708
49	60284
50	26870
51	8372
52	1604
53	212
54	1
55	175649
56	593686

[1, 0, 1, 0, 1, 1, 0, 1, 4, 1, 1, 4, 8, 10, 1, 5, 21, 38, 34, 21, 1, 33, 122, 209, 206, 109, 40, 1, 236, 849, 1400, 1351, 836, 295, 72, 1, 1918, 6719, 10849, 10543, 6629, 2821, 715, 125, 1, 17440, 59873, 95516, 92708, 60284, 26870, 8372, 1604, 212, 1, 175649, 593686]

cp's OEIS Frontend

A080061 Triangle of coefficients of polynomials P(n; x) = Permanent(M), where M=[m(i,j)] is n X n matrix defined by m(i,j)=x if 0<=i-j<=2 else m(i,j)=1.

Table of values

List of values