A280058 - cp's OEIS frontend

A280058 Number of 2 X 2 matrices with entries in {0,1,...,n} with determinant = permanent with no entries repeated.

n	a(n)
0	0
1	0
2	0
3	12
4	48
5	120
6	240
7	420
8	672
9	1008
10	1440
11	1980
12	2640
13	3432
14	4368
15	5460
16	6720
17	8160
18	9792
19	11628
20	13680
21	15960
22	18480
23	21252
24	24288
25	27600
26	31200
27	35100
28	39312
29	43848
30	48720
31	53940
32	59520
33	65472
34	71808
35	78540
36	85680
37	93240
38	101232
39	109668
40	118560

[0, 0, 0, 12, 48, 120, 240, 420, 672, 1008, 1440, 1980, 2640, 3432, 4368, 5460, 6720, 8160, 9792, 11628, 13680, 15960, 18480, 21252, 24288, 27600, 31200, 35100, 39312, 43848, 48720, 53940, 59520, 65472, 71808, 78540, 85680, 93240, 101232, 109668, 118560]

cp's OEIS Frontend

A280058 Number of 2 X 2 matrices with entries in {0,1,...,n} with determinant = permanent with no entries repeated.

Table of values

List of values