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A247109 as a simple table

n a(n)
1 0
2 0
3 0
4 0
5 1
6 2
7 11
8 65
9 433
10 3271
11 27741
12 261231
13 2708064
14 30671367
15 377034018
16 5001404982
17 71229862678
18 1084282429946
19 17571257417630
20 302064161086250
21 5490937395703435
22 105243824522368960
23 2121386876912041845
24 44863116021267642255
25 993272322666679219071
26 22977273619066571708457

[0,0,0,0,1,2,11,65,433,3271,27741,261231,2708064,
 30671367,377034018,5001404982,71229862678,
 1084282429946,17571257417630,302064161086250,
 5490937395703435,105243824522368960,
 2121386876912041845,44863116021267642255,
 993272322666679219071,22977273619066571708457]

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Last modified April 23 12:27 EDT 2024. Contains 371912 sequences. (Running on oeis4.)