A280059 - cp's OEIS frontend

A280059 Number of 2 X 2 matrices having all elements in {-n,..,0,..,n} with determinant = permanent.

n	a(n)
0	1
1	45
2	225
3	637
4	1377
5	2541
6	4225
7	6525
8	9537
9	13357
10	18081
11	23805
12	30625
13	38637
14	47937
15	58621
16	70785
17	84525
18	99937
19	117117
20	136161
21	157165
22	180225
23	205437
24	232897
25	262701
26	294945
27	329725
28	367137
29	407277
30	450241
31	496125

[1, 45, 225, 637, 1377, 2541, 4225, 6525, 9537, 13357, 18081, 23805, 30625, 38637, 47937, 58621, 70785, 84525, 99937, 117117, 136161, 157165, 180225, 205437, 232897, 262701, 294945, 329725, 367137, 407277, 450241, 496125]

cp's OEIS Frontend

A280059 Number of 2 X 2 matrices having all elements in {-n,..,0,..,n} with determinant = permanent.

Table of values

List of values