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A019289 as a simple table

n a(n)
1 2200380
2 8801520
3 14913024
4 35206080
5 140896000
6 459818240
7 775898880
8 2253189120
9 16785793024
10 22648550400
11 36051025920
12 51001180160
13 144204103680 

[2200380,8801520,14913024,35206080,140896000,
 459818240,775898880,2253189120,16785793024,
 22648550400,36051025920,51001180160,144204103680]

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Last modified June 26 14:59 EDT 2024. Contains 373718 sequences. (Running on oeis4.)