a(1)=1, a(2)=2; thereafter, a(n) is the final value at the bottom of the difference triangle of the sequence thus far.
A379781
a(1)=1, a(2)=2; thereafter, a(n) is the final value at the bottom of the difference triangle of the sequence thus far.
Terms
- a(0) =1a(1) =2a(2) =1a(3) =-2a(4) =0a(5) =7a(6) =-14a(7) =-12a(8) =155a(9) =-408a(10) =-364a(11) =7693a(12) =-30940a(13) =10712a(14) =637701a(15) =-4224222a(16) =9980180a(17) =61922567a(18) =-810337234a(19) =4100137008a(20) =-958593005a(21) =-174952472228
External references
- oeis: A379781