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A002658 as a simple table

n a(n)
0 1
1 1
2 2
3 7
4 56
5 2212
6 2595782
7 3374959180831
8 5695183504489239067484387
9 16217557574922386301420531277071365103168734284282

[1,1,2,7,56,2212,2595782,3374959180831,
 5695183504489239067484387,
 16217557574922386301420531277071365103168734284282\
 ]

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Last modified March 28 18:04 EDT 2024. Contains 371254 sequences. (Running on oeis4.)