A211034 - cp's OEIS frontend

A211034 Number of 2 X 2 matrices having all elements in {0,1,...,n} and determinant = 1 (mod 3).

n	a(n)
0	0
1	3
2	24
3	52
4	164
5	384
6	592
7	1131
8	1944
9	2628
10	4128
11	6144
12	7744
13	10955
14	15000
15	18100
16	23988
17	31104
18	36432
19	46179
20	57624
21	66052
22	81056
23	98304
24	110848
25	132723
26	157464
27	175284
28	205860
29	240000
30	264400
31	305723
32	351384
33	383812
34	438144
35	497664
36	539712
37	609531

[0, 3, 24, 52, 164, 384, 592, 1131, 1944, 2628, 4128, 6144, 7744, 10955, 15000, 18100, 23988, 31104, 36432, 46179, 57624, 66052, 81056, 98304, 110848, 132723, 157464, 175284, 205860, 240000, 264400, 305723, 351384, 383812, 438144, 497664, 539712, 609531]

cp's OEIS Frontend

A211034 Number of 2 X 2 matrices having all elements in {0,1,...,n} and determinant = 1 (mod 3).

Table of values

List of values