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A180254 as a simple table

n a(n)
1 1
2 1
3 5
4 47
5 655
6 12145
7 281645
8 7848575
9 255581095
10 9527142625
11 400145871125
12 18700514207375
13 962618343061375
14 54121350164907025
15 3300097924150152125
16 216926019220561025375
17 15292057853288541700375
18 1150861860384703732890625
19 92099021113080260667513125

[1,1,5,47,655,12145,281645,7848575,255581095,
 9527142625,400145871125,18700514207375,
 962618343061375,54121350164907025,
 3300097924150152125,216926019220561025375,
 15292057853288541700375,1150861860384703732890625,
 92099021113080260667513125]

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Last modified April 25 10:42 EDT 2024. Contains 371967 sequences. (Running on oeis4.)