A152813 - OEIS

A152813 as a simple table

n	a(n)
0	3
1	15
2	31
3	51
4	75
5	103
6	135
7	171
8	211
9	255
10	303
11	355
12	411
13	471
14	535
15	603
16	675
17	751
18	831
19	915
20	1003
21	1095
22	1191
23	1291
24	1395
25	1503
26	1615
27	1731
28	1851
29	1975
30	2103
31	2235
32	2371
33	2511
34	2655
35	2803
36	2955
37	3111
38	3271
39	3435
40	3603
41	3775
42	3951
43	4131
44	4315
45	4503
46	4695

[3,15,31,51,75,103,135,171,211,255,303,355,411, 471,535,603,675,751,831,915,1003,1095,1191,1291, 1395,1503,1615,1731,1851,1975,2103,2235,2371,2511, 2655,2803,2955,3111,3271,3435,3603,3775,3951,4131, 4315,4503,4695]