A171503 - cp's OEIS frontend

A171503 Number of 2 X 2 integer matrices with entries from {0,1,...,n} having determinant 1.

n	a(n)
0	0
1	3
2	7
3	15
4	23
5	39
6	47
7	71
8	87
9	111
10	127
11	167
12	183
13	231
14	255
15	287
16	319
17	383
18	407
19	479
20	511
21	559
22	599
23	687
24	719
25	799
26	847
27	919
28	967
29	1079
30	1111
31	1231
32	1295
33	1375
34	1439
35	1535
36	1583
37	1727
38	1799
39	1895
40	1959
41	2119
42	2167
43	2335
44	2415
45	2511
46	2599

[0, 3, 7, 15, 23, 39, 47, 71, 87, 111, 127, 167, 183, 231, 255, 287, 319, 383, 407, 479, 511, 559, 599, 687, 719, 799, 847, 919, 967, 1079, 1111, 1231, 1295, 1375, 1439, 1535, 1583, 1727, 1799, 1895, 1959, 2119, 2167, 2335, 2415, 2511, 2599]

cp's OEIS Frontend

A171503 Number of 2 X 2 integer matrices with entries from {0,1,...,n} having determinant 1.

Table of values

List of values