login

A059372 as a simple table

na(n)
11
2-2
32
4-4
5-4
6-48
7-336
8-2928
9-28144
10-298528
11-3454432
12-43286528
13-583835648
14-8433987584
15-129941213184
16-2127349165824
17-36889047574272
18-675548628690432
19-13030733384956416
20-264111424634864640

[1,-2,2,-4,-4,-48,-336,-2928,-28144,-298528,
 -3454432,-43286528,-583835648,-8433987584,
 -129941213184,-2127349165824,-36889047574272,
 -675548628690432,-13030733384956416,
 -264111424634864640]