a(n) = (smallest n-digit number beginning with n and having prime signature of n)- (smallest n-digit number beginning with n).

A086559

a(n) = (smallest n-digit number beginning with n and having prime signature of n)- (smallest n-digit number beginning with n).

Terms

    a(0) =0a(1) =3a(2) =7a(3) =489a(4) =21a(5) =7a(6) =3a(7) =62991a(8) =660121a(9) =6a(10) =21a(11) =4a(12) =21a(13) =1a(14) =17a(16) =9a(17) =27a(18) =9a(19) =12a(20) =39a(21) =3a(22) =3a(23) =57a(25) =17a(27) =156a(28) =23a(29) =5a(30) =291a(32) =5a(33) =33

External references