A055019 - OEIS

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A055019 as a simple table

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	7
7	8
8	9
9	10
10	11
11	13
12	14
13	20
14	22
15	25
16	40
17	41
18	55
19	57
20	64
21	77
22	125
23	663
24	1053
25	1414
26	1711
27	2822
28	2956
29	4107
30	7463

[1,2,3,4,5,7,8,9,10,11,13,14,20,22,25,40,41,55,57, 64,77,125,663,1053,1414,1711,2822,2956,4107,7463]