A279483 - cp's OEIS frontend

A279483 Number of 2 X 2 matrices with entries in {0,1,...,n} and odd determinant with no entry repeated.

n	a(n)
0	0
1	0
2	0
3	8
4	24
5	144
6	240
7	672
8	960
9	2000
10	2640
11	4680
12	5880
13	9408
14	11424
15	17024
16	20160
17	28512
18	33120
19	45000
20	51480
21	67760
22	76560
23	98208
24	109824
25	137904
26	152880
27	188552
28	207480
29	252000
30	275520
31	330240
32	359040
33	425408
34	460224
35	539784
36	581400
37	675792
38	725040
39	836000
40	893760
41	1023120
42	1090320
43	1240008

[0, 0, 0, 8, 24, 144, 240, 672, 960, 2000, 2640, 4680, 5880, 9408, 11424, 17024, 20160, 28512, 33120, 45000, 51480, 67760, 76560, 98208, 109824, 137904, 152880, 188552, 207480, 252000, 275520, 330240, 359040, 425408, 460224, 539784, 581400, 675792, 725040, 836000, 893760, 1023120, 1090320, 1240008]

cp's OEIS Frontend

A279483 Number of 2 X 2 matrices with entries in {0,1,...,n} and odd determinant with no entry repeated.

Table of values

List of values