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A178389 as a simple table

n a(n)
1 21
2 69
3 93
4 141
5 213
6 237
7 309
8 381
9 453
10 501
11 573
12 597
13 669
14 717
15 789
16 813
17 933
18 1077
19 1101
20 1149
21 1293
22 1317
23 1389
24 1437
25 1461
26 1509
27 1797
28 1821
29 1893
30 1941
31 2157
32 2181
33 2229
34 2253
35 2469
36 2517
37 2589
38 2661
39 2733
40 2757
41 2901
42 2949
43 2973
44 3093
45 3117
46 3189

[21,69,93,141,213,237,309,381,453,501,573,597,669,
 717,789,813,933,1077,1101,1149,1293,1317,1389,
 1437,1461,1509,1797,1821,1893,1941,2157,2181,2229,
 2253,2469,2517,2589,2661,2733,2757,2901,2949,2973,
 3093,3117,3189]

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Last modified May 18 16:58 EDT 2024. Contains 372664 sequences. (Running on oeis4.)