login

A009515 as a simple table

na(n)
00
12
28
3-24
4-4544
5-333920
6-26272896
7-2354853760
8-233143441408
9-22905309777408
10-1339233237800960
11428177363623094272
12310125853369485017088
13153488683972244927062016
1472759436391841580585680896

[0,2,8,-24,-4544,-333920,-26272896,-2354853760,
 -233143441408,-22905309777408,-1339233237800960,
 428177363623094272,310125853369485017088,
 153488683972244927062016,
 72759436391841580585680896]