login

A296171 as a simple table

na(n)
11
2-1
3-1
4-9
5-134
6-2852
7-79096
8-2699480
9-109201844
10-5100872244
11-269903909820
12-15944040740604
13-1039553309158964
14-74123498185170292
15-5736368141560365292
16-478780244956262592748
17-42865943103053965559668
18-4097785410628237071311764
19-416572537937169684523985420
20-44873737158384968851319470220
21-5106038963454360810619516396820
22-611986780692307637617151164361140
23-77066319756799442735378541663266476

[1,-1,-1,-9,-134,-2852,-79096,-2699480,-109201844,
 -5100872244,-269903909820,-15944040740604,
 -1039553309158964,-74123498185170292,
 -5736368141560365292,-478780244956262592748,
 -42865943103053965559668,
 -4097785410628237071311764,
 -416572537937169684523985420,
 -44873737158384968851319470220,
 -5106038963454360810619516396820,
 -611986780692307637617151164361140,
 -77066319756799442735378541663266476]