a(n) contains n digits (either '3' or '4') and is divisible by 2^n.

A035014

a(n) contains n digits (either '3' or '4') and is divisible by 2^n.

Terms

    a(0) =4a(1) =44a(2) =344a(3) =3344a(4) =33344a(5) =433344a(6) =3433344a(7) =33433344a(8) =333433344a(9) =3333433344a(10) =43333433344a(11) =343333433344

External references