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A201880 as a simple table

n a(n)
1 4
2 18
3 21
4 33
5 39
6 72
7 93
8 99
9 100
10 159
11 171
12 177
13 189
14 207
15 213
16 231
17 245
18 249
19 261
20 275
21 291
22 297
23 303
24 333
25 338
26 357
27 369
28 381
29 399
30 400
31 453
32 471
33 475
34 477
35 484
36 495
37 537
38 539
39 543
40 561
41 609
42 633
43 648
44 657
45 669
46 681
47 711
48 717
49 783
50 801
51 833
52 861
53 909
54 927

[4,18,21,33,39,72,93,99,100,159,171,177,189,207,
 213,231,245,249,261,275,291,297,303,333,338,357,
 369,381,399,400,453,471,475,477,484,495,537,539,
 543,561,609,633,648,657,669,681,711,717,783,801,
 833,861,909,927]

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Last modified March 28 08:22 EDT 2024. Contains 371236 sequences. (Running on oeis4.)