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A305683 as a simple table

n a(n)
1 1
2 272
3 4869
4 207116
5 8417922
6 351440611
7 14724197226
8 618597002816
9 26011056462909
10 1094170226062256
11 46034445802982048
12 1936912759209935324
13 81498459201261039711
14 3429207685634735798470
15 144291337042712251135250 

[1,272,4869,207116,8417922,351440611,14724197226,
 618597002816,26011056462909,1094170226062256,
 46034445802982048,1936912759209935324,
 81498459201261039711,3429207685634735798470,
 144291337042712251135250]

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Last modified May 9 10:34 EDT 2024. Contains 372350 sequences. (Running on oeis4.)