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A036821 as a simple table

n a(n)
1 1
2 1
3 1
4 2
5 2
6 3
7 3
8 4
9 5
10 6
11 7
12 9
13 10
14 12
15 15
16 18
17 20
18 24
19 28
20 38
21 42
22 48
23 54
24 67
25 89
26 99
27 109
28 126
29 153
30 205
31 225
32 249
33 283
34 347
35 450
36 500
37 548
38 625
39 756
40 966
41 1068
42 1178
43 1335
44 1605
45 2004
46 2224
47 2447

[1,1,1,2,2,3,3,4,5,6,7,9,10,12,15,18,20,24,28,38,
 42,48,54,67,89,99,109,126,153,205,225,249,283,347,
 450,500,548,625,756,966,1068,1178,1335,1605,2004,
 2224,2447]

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Last modified March 29 08:00 EDT 2024. Contains 371265 sequences. (Running on oeis4.)