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A215815 as a simple table

n a(n)
1 2
2 4
3 20
4 22
5 26
6 28
7 46
8 52
9 68
10 76
11 116
12 118
13 140
14 164
15 172
16 194
17 242
18 244
19 284
20 314
21 316
22 356
23 358
24 362
25 382
26 404
27 428
28 458
29 478
30 598
31 698
32 746
33 772
34 794
35 812
36 914
37 988
38 1004
39 1082

[2,4,20,22,26,28,46,52,68,76,116,118,140,164,172,
 194,242,244,284,314,316,356,358,362,382,404,428,
 458,478,598,698,746,772,794,812,914,988,1004,1082]

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Last modified August 14 09:55 EDT 2024. Contains 375159 sequences. (Running on oeis4.)