A211033 - cp's OEIS frontend

A211033 Number of 2 X 2 matrices having all elements in {0,1,...,n} and determinant = 0 (mod 3).

n	a(n)
0	1
1	10
2	33
3	152
4	297
5	528
6	1217
7	1834
8	2673
9	4744
10	6385
11	8448
12	13073
13	16506
14	20625
15	29336
16	35545
17	42768
18	57457
19	67642
20	79233
21	102152
22	117729
23	135168
24	168929
25	191530
26	216513
27	264088
28	295561
29	330000
30	394721
31	437130
32	483153
33	568712
34	624337
35	684288
36	794737
37	866074

[1, 10, 33, 152, 297, 528, 1217, 1834, 2673, 4744, 6385, 8448, 13073, 16506, 20625, 29336, 35545, 42768, 57457, 67642, 79233, 102152, 117729, 135168, 168929, 191530, 216513, 264088, 295561, 330000, 394721, 437130, 483153, 568712, 624337, 684288, 794737, 866074]

cp's OEIS Frontend

A211033 Number of 2 X 2 matrices having all elements in {0,1,...,n} and determinant = 0 (mod 3).

Table of values

List of values