login

A012833 as a simple table

na(n)
01
1-1
2-3
3-45
42457
5-36825
612566037
7-1732392389
8313988548273
9-92368244011185
1030231378922437805
11-12317648529216417629
126168347852710380187977
13-3616136826996686827399305

[1,-1,-3,-45,2457,-36825,12566037,-1732392389,
 313988548273,-92368244011185,30231378922437805,
 -12317648529216417629,6168347852710380187977,
 -3616136826996686827399305]