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A170769 as a simple table

n a(n)
0 1
1 50
2 2450
3 120050
4 5882450
5 288240050
6 14123762450
7 692064360050
8 33911153642450
9 1661646528480050
10 81420679895522450
11 3989613314880600050
12 195491052429149402450
13 9579061569028320720050
14 469374016882387715282450
15 22999326827236998048840050

[1,50,2450,120050,5882450,288240050,14123762450,
 692064360050,33911153642450,1661646528480050,
 81420679895522450,3989613314880600050,
 195491052429149402450,9579061569028320720050,
 469374016882387715282450,
 22999326827236998048840050]

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Last modified May 18 05:10 EDT 2021. Contains 343994 sequences. (Running on oeis4.)