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A017181 as a simple table

n a(n)
0 1
1 1000000000
2 322687697779
3 10578455953408
4 129961739795077
5 922190162669056
6 4605366583984375
7 18014398509481984
8 58871586708267913
9 167619550409708032
10 427929800129788411
11 1000000000000000000 

[1,1000000000,322687697779,10578455953408,
 129961739795077,922190162669056,4605366583984375,
 18014398509481984,58871586708267913,
 167619550409708032,427929800129788411,
 1000000000000000000]

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Last modified April 23 03:30 EDT 2024. Contains 371906 sequences. (Running on oeis4.)