A278348 - cp's OEIS frontend

A278348 Number of 2 X 2 singular integer matrices with elements from {0,...,n} with no elements repeated.

n	a(n)
0	0
1	0
2	0
3	0
4	0
5	0
6	16
7	16
8	32
9	40
10	72
11	72
12	136
13	136
14	184
15	248
16	304
17	304
18	408
19	408
20	536
21	632
22	712
23	712
24	920
25	968
26	1064
27	1168
28	1360
29	1360
30	1664
31	1664
32	1848
33	2008
34	2136
35	2328
36	2696
37	2696
38	2840
39	3032
40	3432
41	3432
42	3880
43	3880
44	4200
45	4592
46	4768
47	4768
48	5336
49	5456
50	5824

[0, 0, 0, 0, 0, 0, 16, 16, 32, 40, 72, 72, 136, 136, 184, 248, 304, 304, 408, 408, 536, 632, 712, 712, 920, 968, 1064, 1168, 1360, 1360, 1664, 1664, 1848, 2008, 2136, 2328, 2696, 2696, 2840, 3032, 3432, 3432, 3880, 3880, 4200, 4592, 4768, 4768, 5336, 5456, 5824]

cp's OEIS Frontend

A278348 Number of 2 X 2 singular integer matrices with elements from {0,...,n} with no elements repeated.

Table of values

List of values