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A121626 as a simple table

n a(n)
1 1
2 -3
3 -26
4 161
5 2876
6 -27755
7 -740536
8 9722113
9 343603216
10 -5707904499
11 -250756091552
12 5039646554593
13 264489160965056
14 -6237995487261915
15 -380574552503498624
16 10303367499652761601
17 716309568462681538816
18 -21891769059478538933603

[1,-3,-26,161,2876,-27755,-740536,9722113,
 343603216,-5707904499,-250756091552,5039646554593,
 264489160965056,-6237995487261915,
 -380574552503498624,10303367499652761601,
 716309568462681538816,-21891769059478538933603]

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Last modified December 12 01:57 EST 2019. Contains 329948 sequences. (Running on oeis4.)