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A027975 as a simple table

n a(n)
0 1
1 1
2 4
3 5
4 8
5 12
6 16
7 23
8 31
9 42
10 57
11 76
12 102
13 136
14 181
15 241
16 320
17 425
18 564
19 748
20 992
21 1315
22 1743
23 2310
24 3061
25 4056
26 5374
27 7120
28 9433
29 12497
30 16556
31 21933
32 29056
33 38492
34 50992
35 67551
36 89487
37 118546
38 157041
39 208036
40 275590
41 365080
42 483629
43 640673
44 848712
45 1124305
46 1489388
47 1973020

[1,1,4,5,8,12,16,23,31,42,57,76,102,136,181,241,
 320,425,564,748,992,1315,1743,2310,3061,4056,5374,
 7120,9433,12497,16556,21933,29056,38492,50992,
 67551,89487,118546,157041,208036,275590,365080,
 483629,640673,848712,1124305,1489388,1973020]

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