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A044055 as a simple table

n a(n)
1 3
2 9
3 21
4 27
5 48
6 57
7 63
8 75
9 81
10 129
11 138
12 144
13 156
14 165
15 171
16 183
17 189
18 210
19 219
20 225
21 237
22 243
23 372
24 381
25 387
26 399
27 408
28 414
29 426
30 432
31 453
32 462
33 468
34 480
35 489
36 495
37 507
38 513
39 534
40 543
41 549
42 561
43 567
44 615
45 624
46 630
47 642
48 651

[3,9,21,27,48,57,63,75,81,129,138,144,156,165,171,
 183,189,210,219,225,237,243,372,381,387,399,408,
 414,426,432,453,462,468,480,489,495,507,513,534,
 543,549,561,567,615,624,630,642,651]

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Last modified April 25 12:15 EDT 2024. Contains 371969 sequences. (Running on oeis4.)