Write n in binary n times and concatenate (see example). a(n) is the decimal equivalent.

A162473

Write n in binary n times and concatenate (see example). a(n) is the decimal equivalent.

Terms

    a(0) =1a(1) =10a(2) =63a(3) =2340a(4) =23405a(5) =224694a(6) =2097151a(7) =2290649224a(8) =41231686041a(9) =733007751850

External references