A043833 - OEIS

A043833 as a simple table

n	a(n)
1	1
2	2
3	3
4	5
5	10
6	15
7	21
8	42
9	63
10	85
11	170
12	255
13	341
14	682
15	1023
16	1092
17	1094
18	1095
19	1096
20	1097
21	1099
22	1100
23	1101
24	1102
25	1121
26	1122
27	1123
28	1124
29	1126
30	1127
31	1132
32	1133
33	1134
34	1137
35	1138
36	1139
37	1140
38	1142
39	1143
40	1144
41	1145
42	1147

[1,2,3,5,10,15,21,42,63,85,170,255,341,682,1023, 1092,1094,1095,1096,1097,1099,1100,1101,1102,1121, 1122,1123,1124,1126,1127,1132,1133,1134,1137,1138, 1139,1140,1142,1143,1144,1145,1147]