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A219739 as a simple table

n a(n)
1 21
2 129
3 1180
4 9425
5 78661
6 647252
7 5350080
8 44159095
9 364647622
10 3010723330
11 24858935864
12 205253857220
13 1694729679245
14 13992960979394
15 115536377026413
16 953955009802438
17 7876568121973188
18 65034854910941849
19 536976546612691621 

[21,129,1180,9425,78661,647252,5350080,44159095,
 364647622,3010723330,24858935864,205253857220,
 1694729679245,13992960979394,115536377026413,
 953955009802438,7876568121973188,
 65034854910941849,536976546612691621]

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Last modified May 21 19:35 EDT 2024. Contains 372738 sequences. (Running on oeis4.)