a(n) = 20*a(n-1) - 64*a(n-2) + 3 for n > 2; a(0) = 1, a(1) = 22, a(2) = 378.
A167122
a(n) = 20*a(n-1) - 64*a(n-2) + 3 for n > 2; a(0) = 1, a(1) = 22, a(2) = 378.
Terms
- a(0) =1a(1) =22a(2) =378a(3) =6155a(4) =98911a(5) =1584303a(6) =25355759a(7) =405719791a(8) =6491627247a(9) =103866478319
External references
- oeis: A167122