a(n) = 8*a(n-1) + 21*a(n-2), with a(1)=1, a(2)=11.
A094703
a(n) = 8*a(n-1) + 21*a(n-2), with a(1)=1, a(2)=11.
Terms
- a(0) =1a(1) =11a(2) =109a(3) =1103a(4) =11113a(5) =112067a(6) =1129909a(7) =11392679a(8) =114869521a(9) =1158202427a(10) =11677879357a(11) =117745285823
External references
- oeis: A094703