login

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

A140892 as a simple table

na(n)
1-1
20
30
40
5399
6357857
713055867207
8558545862282195466
95070602400912917604201018916608
1030432527221704537086371993251530170527181380482652674
1199999999999999999999999999999999999999999999999999999999999999999999968818280070033816399

[-1,0,0,0,399,357857,13055867207,
 558545862282195466,
 5070602400912917604201018916608,
 30432527221704537086371993251530170527181380482652\
 674,
 99999999999999999999999999999999999999999999999999\
 999999999999999999968818280070033816399]