A057838 - OEIS

A057838 as a simple table

n	a(n)
1	2
2	3
3	11
4	35
5	71
6	191
7	419
8	659
9	1091
10	1199
11	1379
12	1655
13	2015
14	2135
15	2339
16	2591
17	3059
18	4439
19	6119
20	6215
21	6335
22	7055
23	8099
24	8351
25	8519
26	9815
27	11159
28	12419
29	12431
30	12599
31	12719
32	12851
33	13679
34	15119
35	15239
36	16415
37	16919
38	17255
39	17879
40	18215
41	18479

[2,3,11,35,71,191,419,659,1091,1199,1379,1655, 2015,2135,2339,2591,3059,4439,6119,6215,6335,7055, 8099,8351,8519,9815,11159,12419,12431,12599,12719, 12851,13679,15119,15239,16415,16919,17255,17879, 18215,18479]