a(n)= A*10^(3*n)+B with A=(10^(3*n)-10^n) and B=10^(2*n).
A055617
a(n)= A*10^(3*n)+B with A=(10^(3*n)-10^n) and B=10^(2*n).
Terms
- a(0) =990100a(1) =999900010000
External references
- oeis: A055617
A055617
a(n)= A*10^(3*n)+B with A=(10^(3*n)-10^n) and B=10^(2*n).