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A230672 as a simple table

n a(n)
1 15
2 3387
3 340563
4 37034355
5 4022141121
6 436827078531
7 47444197636239
8 5152946201086569
9 559664961809994753
10 60785594007085980027
11 6601964808003397959249
12 717043900743978231419349

[15,3387,340563,37034355,4022141121,436827078531,
 47444197636239,5152946201086569,
 559664961809994753,60785594007085980027,
 6601964808003397959249,717043900743978231419349]

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Last modified November 29 21:32 EST 2021. Contains 349416 sequences. (Running on oeis4.)