login

A290152 as a simple table

na(n)
31
4168
5-12636
6392832
7-7335174
892207808
9-804651624
104626614784
11-11834988165
12-73870961696
131115908456740
14-7498139072256
1532630722986078
16-90379426346496
1794395618447768
18450271639673856
19-2625847472007243
206203580643521072
21-3151366507609936

[1,168,-12636,392832,-7335174,92207808,-804651624,
 4626614784,-11834988165,-73870961696,
 1115908456740,-7498139072256,32630722986078,
 -90379426346496,94395618447768,450271639673856,
 -2625847472007243,6203580643521072,
 -3151366507609936]