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A187854 as a simple table

n a(n)
1 0
2 0
3 16032
4 292776
5 1400168
6 3807828
7 7700944
8 13082348
9 19910456
10 28160124
11 37824352
12 48902340
13 61394088
14 75299596
15 90618864
16 107351892
17 125498680
18 145059228
19 166033536
20 188421604
21 212223432
22 237439020
23 264068368
24 292111476

[0,0,16032,292776,1400168,3807828,7700944,
 13082348,19910456,28160124,37824352,48902340,
 61394088,75299596,90618864,107351892,125498680,
 145059228,166033536,188421604,212223432,237439020,
 264068368,292111476]

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Last modified November 30 19:02 EST 2021. Contains 349424 sequences. (Running on oeis4.)