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A131643 as a simple table

n a(n)
1 216
2 8000
3 64000
4 216000
5 343000
6 5832000
7 35937000
8 157464000
9 1540798875
10 3951805941
11 22069810125
12 23295638016
13 58230605376
14 170400029184
15 4767078987000
16 19814511816000
17 241152896222784
18 565199024832000
19 731189187729000
20 5399901725184000
21 13389040129314816
22 15517248640897024

[216,8000,64000,216000,343000,5832000,35937000,
 157464000,1540798875,3951805941,22069810125,
 23295638016,58230605376,170400029184,
 4767078987000,19814511816000,241152896222784,
 565199024832000,731189187729000,5399901725184000,
 13389040129314816,15517248640897024]

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Last modified September 30 23:44 EDT 2020. Contains 337440 sequences. (Running on oeis4.)