a(n) contains n digits (either '2' or '9') and is divisible by 2^n.

A053313

a(n) contains n digits (either '2' or '9') and is divisible by 2^n.

Terms

    a(0) =2a(1) =92a(2) =992a(3) =2992a(4) =92992a(5) =292992a(6) =2292992a(7) =22292992a(8) =222292992a(9) =2222292992a(10) =22222292992a(11) =922222292992

External references