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A290701 as a simple table

n a(n)
2 2
3 -6
4 6
5 10
6 -30
7 -42
8 238
9 306
10 -2790
11 -3410
12 45606
13 53898
14 -993902
15 -1146810
16 27887070
17 31605346
18 -979901046
19 -1095183522
20 42166810390
21 46605422010
22 -2181617832702
23 -2389390959626
24 133636947954126
25 145257552124050
26 -9566483624198150
27 -10331802314134002

[2,-6,6,10,-30,-42,238,306,-2790,-3410,45606,
 53898,-993902,-1146810,27887070,31605346,
 -979901046,-1095183522,42166810390,46605422010,
 -2181617832702,-2389390959626,133636947954126,
 145257552124050,-9566483624198150,
 -10331802314134002]

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Last modified July 15 10:48 EDT 2024. Contains 374332 sequences. (Running on oeis4.)