A115283 - OEIS

A115283 as a simple table

n	a(n)
0	1
1	3
2	6
3	13
4	18
5	27
6	37
7	48
8	60
9	76
10	90
11	108
12	127
13	147
14	168
15	193
16	216
17	243
18	271
19	300
20	330
21	364
22	396
23	432
24	469
25	507
26	546
27	589
28	630
29	675
30	721
31	768
32	816
33	868
34	918
35	972
36	1027
37	1083
38	1140
39	1201
40	1260
41	1323
42	1387
43	1452
44	1518
45	1588
46	1656
47	1728
48	1801

[1,3,6,13,18,27,37,48,60,76,90,108,127,147,168, 193,216,243,271,300,330,364,396,432,469,507,546, 589,630,675,721,768,816,868,918,972,1027,1083, 1140,1201,1260,1323,1387,1452,1518,1588,1656,1728, 1801]