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A024343 as a simple table

n a(n)
0 2
1 -120
2 30240
3 -17297280
4 17643225600
5 -28158588057600
6 64764752532480000
7 -202843204931727360000
8 830034394580628357120000
9 -4299578163927654889881600000
10 27500101936481280675682713600000

[2,-120,30240,-17297280,17643225600,
 -28158588057600,64764752532480000,
 -202843204931727360000,830034394580628357120000,
 -4299578163927654889881600000,
 27500101936481280675682713600000]

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Last modified March 28 19:21 EDT 2020. Contains 333103 sequences. (Running on oeis4.)