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A115047 as a simple table

n a(n)
3 1
4 1
5 5
6 61
7 1379
8 49946
9 2648967
10 193530835
11 18634276859
12 2286742481794
13 348390662991293
14 64519134394428000
15 14273926322439378685
16 3718118808742139574436
17 1126348335942168962657751
18 392634641364638381277506199
19 156052858498185218872911914627
20 70147998632789834910508237254650

[1,1,5,61,1379,49946,2648967,193530835,
 18634276859,2286742481794,348390662991293,
 64519134394428000,14273926322439378685,
 3718118808742139574436,1126348335942168962657751,
 392634641364638381277506199,
 156052858498185218872911914627,
 70147998632789834910508237254650]

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Last modified September 25 18:55 EDT 2023. Contains 365648 sequences. (Running on oeis4.)