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A005156 as a simple table

n a(n)
0 1
1 1
2 3
3 26
4 646
5 45885
6 9304650
7 5382618660
8 8878734657276
9 41748486581283118
10 559463042542694360707
11 21363742267675013243931852
12 2324392978926652820310084179576
13 720494439459132215692530771292602232
14 636225819409712640497085074811372777428304 

[1,1,3,26,646,45885,9304650,5382618660,
 8878734657276,41748486581283118,
 559463042542694360707,21363742267675013243931852,
 2324392978926652820310084179576,
 720494439459132215692530771292602232,
 636225819409712640497085074811372777428304]

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Last modified May 15 01:30 EDT 2024. Contains 372536 sequences. (Running on oeis4.)