A109471 - OEIS

A109471 as a simple table

n	a(n)
0	1
1	3
2	6
3	11
4	17
5	27
6	38
7	55
8	76
9	103
10	136
11	182
12	235
13	303
14	385
15	489
16	612
17	766
18	945
19	1166
20	1428
21	1742
22	2111
23	2557
24	3072
25	3686
26	4401
27	5246
28	6223
29	7371
30	8692
31	10236
32	12014
33	14074
34	16435
35	19171
36	22292
37	25884
38	29981
39	34677
40	40017
41	46122
42	53038
43	60920

[1,3,6,11,17,27,38,55,76,103,136,182,235,303,385, 489,612,766,945,1166,1428,1742,2111,2557,3072, 3686,4401,5246,6223,7371,8692,10236,12014,14074, 16435,19171,22292,25884,29981,34677,40017,46122, 53038,60920]