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A171664 as a simple table

n a(n)
1 4
2 6
3 9
4 14
5 18
6 21
7 27
8 57
9 69
10 77
11 141
12 155
13 161
14 194
15 261
16 381
17 428
18 551
19 579
20 620
21 626
22 671
23 672
24 704
25 720
26 755
27 1007
28 1349
29 1506
30 1529
31 1611
32 1659
33 1707
34 1710
35 1814
36 1982
37 1986
38 1994
39 2036
40 2037
41 2157
42 2429
43 2651
44 2714
45 2771
46 2783
47 2966
48 3039
49 3044
50 3101

[4,6,9,14,18,21,27,57,69,77,141,155,161,194,261,
 381,428,551,579,620,626,671,672,704,720,755,1007,
 1349,1506,1529,1611,1659,1707,1710,1814,1982,1986,
 1994,2036,2037,2157,2429,2651,2714,2771,2783,2966,
 3039,3044,3101]

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Last modified December 7 01:49 EST 2023. Contains 367616 sequences. (Running on oeis4.)