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A243440 as a simple table

n a(n)
0 1
1 1
2 3
3 25
4 499
5 18897
6 1158175
7 104287909
8 12948389505
9 2119204222647
10 442024984454145
11 114447363118335099
12 36014003359662761889
13 13536516384259740525435
14 5989775500211255393302197
15 3082008257212085146469317911
16 1824650971940959528920159955650
17 1231558332755627626667173051846452

[1,1,3,25,499,18897,1158175,104287909,12948389505,
 2119204222647,442024984454145,114447363118335099,
 36014003359662761889,13536516384259740525435,
 5989775500211255393302197,
 3082008257212085146469317911,
 1824650971940959528920159955650,
 1231558332755627626667173051846452]

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Last modified September 18 23:45 EDT 2021. Contains 347549 sequences. (Running on oeis4.)