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A158912 as a simple table

n a(n)
1 20
2 1218
3 7540
4 20280
5 1373090
6 4903600
7 23308460
8 316540365
9 527813814
10 4091661910
11 16718044954
12 1034412600
13 142903074740
14 1827252574658
15 31036383127940

[20,1218,7540,20280,1373090,4903600,23308460,
 316540365,527813814,4091661910,16718044954,
 1034412600,142903074740,1827252574658,
 31036383127940]

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Last modified April 25 03:15 EDT 2024. Contains 371964 sequences. (Running on oeis4.)