A028783 - OEIS

The OEIS is supported by the many generous donors to the OEIS Foundation.

A028783 as a simple table

n	a(n)
1	2
2	3
3	5
4	6
5	7
6	8
7	10
8	12
9	13
10	17
11	18
12	19
13	20
14	22
15	23
16	24
17	26
18	27
19	28
20	31
21	32
22	33
23	34
24	37
25	38
26	40
27	41
28	42
29	43
30	45
31	47
32	48
33	52
34	53
35	54
36	55
37	57
38	58
39	59
40	61
41	62
42	63
43	66
44	67
45	68
46	69

[2,3,5,6,7,8,10,12,13,17,18,19,20,22,23,24,26,27, 28,31,32,33,34,37,38,40,41,42,43,45,47,48,52,53, 54,55,57,58,59,61,62,63,66,67,68,69]