A211145 - cp's OEIS frontend

A211145 Number of 2 X 2 matrices having all terms in {-n,...,0,..,n} and permanent=trace.

n	a(n)
0	1
1	19
2	60
3	116
4	196
5	292
6	404
7	548
8	708
9	868
10	1060
11	1284
12	1524
13	1796
14	2052
15	2292
16	2612
17	2980
18	3348
19	3748
20	4116
21	4452
22	4884
23	5380
24	5844
25	6324
26	6820
27	7300
28	7860
29	8468
30	9060
31	9732
32	10388
33	10964
34	11572
35	12180
36	12852
37	13668
38	14436
39	15092

[1, 19, 60, 116, 196, 292, 404, 548, 708, 868, 1060, 1284, 1524, 1796, 2052, 2292, 2612, 2980, 3348, 3748, 4116, 4452, 4884, 5380, 5844, 6324, 6820, 7300, 7860, 8468, 9060, 9732, 10388, 10964, 11572, 12180, 12852, 13668, 14436, 15092]

cp's OEIS Frontend

A211145 Number of 2 X 2 matrices having all terms in {-n,...,0,..,n} and permanent=trace.

Table of values

List of values