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A007988 as a simple table

n a(n)
2 2
3 2
4 5
5 6
6 11
7 12
8 20
9 22
10 32
11 36
12 49
13 54
14 71
15 78
16 98
17 108
18 132
19 144
20 173
21 188
22 221
23 240
24 278
25 300
26 344
27 370
28 419
29 450
30 505
31 540
32 602
33 642
34 710
35 756
36 831
37 882
38 965
39 1022
40 1112
41 1176
42 1274
43 1344
44 1451
45 1528
46 1643
47 1728
48 1852
49 1944
50 2078
51 2178

[2,2,5,6,11,12,20,22,32,36,49,54,71,78,98,108,132,
 144,173,188,221,240,278,300,344,370,419,450,505,
 540,602,642,710,756,831,882,965,1022,1112,1176,
 1274,1344,1451,1528,1643,1728,1852,1944,2078,2178]

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Last modified April 19 08:45 EDT 2024. Contains 371782 sequences. (Running on oeis4.)