Sum of all digits in all even numbers from 0 to 6(10^(k+1)-1)/9 (with (k+1) 6's).

A089343

Sum of all digits in all even numbers from 0 to 6(10^(k+1)-1)/9 (with (k+1) 6's).

Terms

    a(0) =0a(1) =12a(2) =231a(3) =3735a(4) =52239a(5) =672243a(6) =8222247a(7) =97222251a(8) =1122222255a(9) =12722222259a(10) =142222222263

External references