A278846 - cp's OEIS frontend

A278846 Number of unimodular 2 X 2 matrices having entries in {0,1,...,n} with no entry repeated.

n	a(n)
0	0
1	0
2	0
3	0
4	0
5	8
6	8
7	40
8	48
9	80
10	88
11	152
12	160
13	232
14	264
15	304
16	344
17	448
18	480
19	608
20	648
21	720
22	784
23	944
24	968
25	1104
26	1176
27	1304
28	1376
29	1576
30	1616
31	1840
32	1944
33	2080
34	2184
35	2352
36	2424
37	2688
38	2816
39	2984
40	3072
41	3368
42	3440
43	3760
44	3896
45	4064
46	4224
47	4576
48	4664
49	4984
50	5120

[0, 0, 0, 0, 0, 8, 8, 40, 48, 80, 88, 152, 160, 232, 264, 304, 344, 448, 480, 608, 648, 720, 784, 944, 968, 1104, 1176, 1304, 1376, 1576, 1616, 1840, 1944, 2080, 2184, 2352, 2424, 2688, 2816, 2984, 3072, 3368, 3440, 3760, 3896, 4064, 4224, 4576, 4664, 4984, 5120]

cp's OEIS Frontend

A278846 Number of unimodular 2 X 2 matrices having entries in {0,1,...,n} with no entry repeated.

Table of values

List of values