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A137821 as a simple table

n a(n)
1 1
2 4
3 6
4 13
5 15
6 18
7 19
8 40
9 42
10 45
11 46
12 54
13 55
14 58
15 60
16 121
17 123
18 126
19 127
20 135
21 136
22 139
23 141
24 162
25 163
26 166
27 168
28 175
29 177
30 180
31 181
32 364
33 366
34 369
35 370
36 378
37 379
38 382
39 384
40 405
41 406
42 409
43 411
44 418
45 420
46 423
47 424
48 486
49 487
50 490
51 492
52 499
53 501
54 504
55 505

[1,4,6,13,15,18,19,40,42,45,46,54,55,58,60,121,
 123,126,127,135,136,139,141,162,163,166,168,175,
 177,180,181,364,366,369,370,378,379,382,384,405,
 406,409,411,418,420,423,424,486,487,490,492,499,
 501,504,505]

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Last modified March 24 06:22 EDT 2019. Contains 321444 sequences. (Running on oeis4.)