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A290576 as a simple table

n a(n)
0 1
1 3
2 27
3 309
4 4059
5 57753
6 866349
7 13492251
8 216077787
9 3536145057
10 58875891777
11 994150929951
12 16984143140589
13 293036113226223
14 5098773125244483
15 89368239352074309
16 1576424378494272987
17 27964450505226314673
18 498550055166916502121

[1,3,27,309,4059,57753,866349,13492251,216077787,
 3536145057,58875891777,994150929951,
 16984143140589,293036113226223,5098773125244483,
 89368239352074309,1576424378494272987,
 27964450505226314673,498550055166916502121]

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Last modified November 22 13:47 EST 2019. Contains 329393 sequences. (Running on oeis4.)