A273577 - OEIS

A273577 as a simple table

n	a(n)
0	1
1	5
2	21
3	33
4	77
5	105
6	153
7	161
8	285
9	345
10	425
11	465
12	609
13	665
14	777
15	705
16	1085
17	1209
18	1353
19	1457
20	1665
21	1785
22	1961
23	1953
24	2385
25	2537
26	2745
27	2769
28	3185
29	3225
30	3465
31	2945
32	4221
33	4473
34	4745
35	4977
36	5313
37	5561
38	5865
39	5985
40	6545
41	6825
42	7161
43	7313
44	7857
45	8025
46	8393

[1,5,21,33,77,105,153,161,285,345,425,465,609,665, 777,705,1085,1209,1353,1457,1665,1785,1961,1953, 2385,2537,2745,2769,3185,3225,3465,2945,4221,4473, 4745,4977,5313,5561,5865,5985,6545,6825,7161,7313, 7857,8025,8393]