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A225688 as a simple table

n a(n)
0 1
1 1
2 3
3 8
4 33
5 136
6 723
7 3968
8 25953
9 176896
10 1376643
11 11184128
12 101031873
13 951878656
14 9795436563
15 104932671488
16 1212135593793
17 14544442556416
18 186388033956483
19 2475749026562048
20 34859622790687713
21 507711943253426176
22 7791941518975112403
23 123460740095103991808

[1,1,3,8,33,136,723,3968,25953,176896,1376643,
 11184128,101031873,951878656,9795436563,
 104932671488,1212135593793,14544442556416,
 186388033956483,2475749026562048,
 34859622790687713,507711943253426176,
 7791941518975112403,123460740095103991808]

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Last modified September 19 23:31 EDT 2019. Contains 327207 sequences. (Running on oeis4.)