a(n) contains n digits (either '1' or '8') and is divisible by 2^n.

A053376

a(n) contains n digits (either '1' or '8') and is divisible by 2^n.

Terms

    a(0) =8a(1) =88a(2) =888a(3) =1888a(4) =81888a(5) =181888a(6) =8181888a(7) =18181888a(8) =118181888a(9) =8118181888a(10) =88118181888a(11) =888118181888

External references