A068855 - OEIS

A068855 as a simple table

n	a(n)
1	1
2	3
3	6
4	10
5	21
6	36
7	45
8	66
9	78
10	91
11	105
12	210
13	325
14	406
15	528
16	630
17	703
18	820
19	903
20	1035
21	2211
22	3003
23	4186
24	5050
25	6105
26	7021
27	8256
28	9045
29	10153
30	21321
31	30135
32	41041
33	50403
34	61075
35	70500
36	82215
37	90100
38	101025
39	210276
40	303031
41	411778
42	500500
43	611065

[1,3,6,10,21,36,45,66,78,91,105,210,325,406,528, 630,703,820,903,1035,2211,3003,4186,5050,6105, 7021,8256,9045,10153,21321,30135,41041,50403, 61075,70500,82215,90100,101025,210276,303031, 411778,500500,611065]