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A028289 as a simple table

n a(n)
0 1
1 1
2 2
3 4
4 5
5 7
6 11
7 13
8 17
9 23
10 27
11 33
12 42
13 48
14 57
15 69
16 78
17 90
18 106
19 118
20 134
21 154
22 170
23 190
24 215
25 235
26 260
27 290
28 315
29 345
30 381
31 411
32 447
33 489
34 525
35 567
36 616
37 658
38 707
39 763
40 812
41 868
42 932
43 988
44 1052
45 1124
46 1188

[1,1,2,4,5,7,11,13,17,23,27,33,42,48,57,69,78,90,
 106,118,134,154,170,190,215,235,260,290,315,345,
 381,411,447,489,525,567,616,658,707,763,812,868,
 932,988,1052,1124,1188]

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Last modified April 24 20:08 EDT 2024. Contains 371963 sequences. (Running on oeis4.)