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A280557 as a simple table

n a(n)
1 4
2 6
3 13
4 15
5 23
6 25
7 31
8 71
9 133
10 333
11 341
12 905
13 1027
14 3667
15 7241
16 8217
17 8493
18 9816
19 11842
20 15454
21 15891
22 19117
23 30424
24 35196
25 42808
26 78408
27 95641
28 177466

[4,6,13,15,23,25,31,71,133,333,341,905,1027,3667,
 7241,8217,8493,9816,11842,15454,15891,19117,30424,
 35196,42808,78408,95641,177466]

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Last modified June 6 07:20 EDT 2024. Contains 373115 sequences. (Running on oeis4.)