A209975 - cp's OEIS frontend

A209975 Number of 2 X 2 matrices having all elements in {0,1,...,n} and determinant 3.

n	a(n)
0	0
1	0
2	1
3	21
4	29
5	45
6	65
7	89
8	105
9	153
10	169
11	209
12	249
13	297
14	321
15	401
16	433
17	497
18	545
19	617
20	649
21	769
22	809
23	897
24	977
25	1057
26	1105
27	1249
28	1297
29	1409
30	1489
31	1609
32	1673
33	1873
34	1937
35	2033
36	2129
37	2273
38	2345
39	2585
40	2649
41	2809
42	2929
43	3097
44	3177
45	3369
46	3457

[0, 0, 1, 21, 29, 45, 65, 89, 105, 153, 169, 209, 249, 297, 321, 401, 433, 497, 545, 617, 649, 769, 809, 897, 977, 1057, 1105, 1249, 1297, 1409, 1489, 1609, 1673, 1873, 1937, 2033, 2129, 2273, 2345, 2585, 2649, 2809, 2929, 3097, 3177, 3369, 3457]

cp's OEIS Frontend

A209975 Number of 2 X 2 matrices having all elements in {0,1,...,n} and determinant 3.

Table of values

List of values