a(n) = A112889(n)/n.

A112890

a(n) = A112889(n)/n.

Terms

    a(0) =0a(1) =50a(2) =1000a(3) =2500a(4) =20000a(5) =500000a(6) =10000000a(7) =12500000a(8) =1000000000a(9) =1000000000a(10) =90909090910a(11) =250000000000

External references