a(n) = 9^n-8^n-7^n-6^n-5^n-4^n-3^n-2^n-1.

A147996

a(n) = 9^n-8^n-7^n-6^n-5^n-4^n-3^n-2^n-1.

Terms

    a(0) =-7a(1) =-27a(2) =-123a(3) =-567a(4) =-2211a(5) =-2727a(6) =84477a(7) =1485513a(8) =18362109a(9) =200535993a(10) =2059226877a(11) =20397799593a(12) =197430536829

External references