A211054 - cp's OEIS frontend

A211054 Number of 2 X 2 matrices having all terms in {1,...,n} and determinant n-1.

n	a(n)
0	0
1	1
2	2
3	6
4	11
5	26
6	27
7	66
8	57
9	109
10	109
11	182
12	129
13	319
14	187
15	332
16	360
17	497
18	309
19	714
20	397
21	839
22	690
23	842
24	571
25	1456
26	821
27	1156
28	1126
29	1663
30	907
31	2264
32	1071
33	2106
34	1708
35	1976
36	1798
37	3449
38	1513
39	2474
40	2358
41	3874
42	1839
43	4372
44	2065
45	3973

[0, 1, 2, 6, 11, 26, 27, 66, 57, 109, 109, 182, 129, 319, 187, 332, 360, 497, 309, 714, 397, 839, 690, 842, 571, 1456, 821, 1156, 1126, 1663, 907, 2264, 1071, 2106, 1708, 1976, 1798, 3449, 1513, 2474, 2358, 3874, 1839, 4372, 2065, 3973]

cp's OEIS Frontend

A211054 Number of 2 X 2 matrices having all terms in {1,...,n} and determinant n-1.

Table of values

List of values