A077156 - OEIS

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A077156 as a simple table

n	a(n)
0	1
1	2
2	4
3	3
4	5
5	6
6	8
7	7
8	11
9	13
10	9
11	10
12	12
13	17
14	19
15	23
16	29
17	14
18	15
19	16
20	18
21	31
22	37
23	41
24	43
25	47
26	20
27	21
28	22
29	24
30	25
31	53
32	59
33	61
34	67
35	71
36	73
37	26
38	27
39	28
40	30
41	32
42	33

[1,2,4,3,5,6,8,7,11,13,9,10,12,17,19,23,29,14,15, 16,18,31,37,41,43,47,20,21,22,24,25,53,59,61,67, 71,73,26,27,28,30,32,33]