A210377 - cp's OEIS frontend

A210377 Number of 2 X 2 matrices with all terms in {0,1,...,n} and (sum of terms) = n + 5.

n	a(n)
0	0
1	0
2	4
3	31
4	80
5	146
6	224
7	315
8	420
9	540
10	676
11	829
12	1000
13	1190
14	1400
15	1631
16	1884
17	2160
18	2460
19	2785
20	3136
21	3514
22	3920
23	4355
24	4820
25	5316
26	5844
27	6405
28	7000
29	7630
30	8296
31	8999
32	9740
33	10520
34	11340
35	12201
36	13104
37	14050
38	15040
39	16075
40	17156
41	18284

[0, 0, 4, 31, 80, 146, 224, 315, 420, 540, 676, 829, 1000, 1190, 1400, 1631, 1884, 2160, 2460, 2785, 3136, 3514, 3920, 4355, 4820, 5316, 5844, 6405, 7000, 7630, 8296, 8999, 9740, 10520, 11340, 12201, 13104, 14050, 15040, 16075, 17156, 18284]

cp's OEIS Frontend

A210377 Number of 2 X 2 matrices with all terms in {0,1,...,n} and (sum of terms) = n + 5.

Table of values

List of values