login

Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.

A293533 as a simple table

na(n)
01
1-1
2-1
35
4-23
5-41
61111
7-6259
8-16015
9828143
10-6453809
11-23557931
121516982809
13-15821700025
14-76745280793
155613303472349
16-73951449390239
17-445513157340449
1836776986711862815
19-582726291386478427
20-4158268555818657079
21388618610293537423799

[1,-1,-1,5,-23,-41,1111,-6259,-16015,828143,
 -6453809,-23557931,1516982809,-15821700025,
 -76745280793,5613303472349,-73951449390239,
 -445513157340449,36776986711862815,
 -582726291386478427,-4158268555818657079,
 388618610293537423799]