A062691 - OEIS

A062691 as a simple table

n	a(n)
1	10
2	15
3	21
4	28
5	36
6	45
7	78
8	91
9	171
10	300
11	595
12	990
13	1711
14	2211
15	3003
16	5050
17	5151
18	5565
19	5995
20	6555
21	8778
22	10011
23	66066
24	222111
25	255255
26	333336
27	500500
28	600060
29	828828
30	887778
31	1188111
32	5656566
33	22221111
34	50005000
35	51151555
36	88877778
37	2222211111
38	5000050000

[10,15,21,28,36,45,78,91,171,300,595,990,1711, 2211,3003,5050,5151,5565,5995,6555,8778,10011, 66066,222111,255255,333336,500500,600060,828828, 887778,1188111,5656566,22221111,50005000,51151555, 88877778,2222211111,5000050000]