A174440 - OEIS

A174440 as a simple table

n	a(n)
1	3
2	9
3	16
4	27
5	39
6	53
7	68
8	87
9	108
10	130
11	153
12	177
13	204
14	232
15	262
16	293
17	326
18	361
19	399
20	438
21	480
22	523
23	567
24	613
25	660
26	708
27	759
28	813
29	868
30	924
31	981
32	1040
33	1100
34	1162
35	1225
36	1291
37	1358
38	1427
39	1497
40	1568
41	1643
42	1719
43	1796
44	1874
45	1953
46	2036
47	2120
48	2206
49	2293
50	2381

[3,9,16,27,39,53,68,87,108,130,153,177,204,232, 262,293,326,361,399,438,480,523,567,613,660,708, 759,813,868,924,981,1040,1100,1162,1225,1291,1358, 1427,1497,1568,1643,1719,1796,1874,1953,2036,2120, 2206,2293,2381]