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A247771 as a simple table

n a(n)
0 1
1 1
2 5
3 50
4 437
5 3270
6 21720
7 160593
8 1209537
9 8999307
10 66054288
11 485082083
12 3583263174
13 26469863097
14 195317239597
15 1440271919247
16 10624063817149
17 78389991175482
18 578363501074881
19 4266856868607953
20 31478045125433448
21 232231064765922254
22 1713315860292710073

[1,1,5,50,437,3270,21720,160593,1209537,8999307,
 66054288,485082083,3583263174,26469863097,
 195317239597,1440271919247,10624063817149,
 78389991175482,578363501074881,4266856868607953,
 31478045125433448,232231064765922254,
 1713315860292710073]

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Last modified June 11 19:21 EDT 2024. Contains 373317 sequences. (Running on oeis4.)