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A041615 as a simple table

n a(n)
0 1
1 18
2 649
3 11700
4 421849
5 7604982
6 274201201
7 4943226600
8 178230358801
9 3213089685018
10 115849459019449
11 2088503352035100
12 75301970132283049
13 1357523965733129982
14 48946164736524962401
15 882388489223182453200
16 31814931776771093277601

[1,18,649,11700,421849,7604982,274201201,
 4943226600,178230358801,3213089685018,
 115849459019449,2088503352035100,
 75301970132283049,1357523965733129982,
 48946164736524962401,882388489223182453200,
 31814931776771093277601]

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Last modified July 11 20:03 EDT 2020. Contains 335652 sequences. (Running on oeis4.)