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A018053 as a simple table

n a(n)
0 1
1 2
2 2
3 3
4 3
5 4
6 6
7 7
8 9
9 12
10 16
11 21
12 27
13 36
14 47
15 62
16 81
17 107
18 141
19 185
20 243
21 320
22 421
23 554
24 729
25 960
26 1263
27 1662
28 2187
29 2879
30 3788
31 4986
32 6561
33 8635
34 11364
35 14956
36 19683
37 25905
38 34092
39 44868
40 59049
41 77713

[1,2,2,3,3,4,6,7,9,12,16,21,27,36,47,62,81,107,
 141,185,243,320,421,554,729,960,1263,1662,2187,
 2879,3788,4986,6561,8635,11364,14956,19683,25905,
 34092,44868,59049,77713]

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Last modified August 28 15:46 EDT 2024. Contains 375507 sequences. (Running on oeis4.)