a(n) is the difference between numbers of nonnegative multiples of 2*n+1 with even and odd digit sum in base 2*n in interval [0, (2*n)^9).

A212706

a(n) is the difference between numbers of nonnegative multiples of 2*n+1 with even and odd digit sum in base 2*n in interval [0, (2*n)^9).

Terms

    a(0) =81a(1) =5825a(2) =73745a(3) =461313a(4) =1951057a(5) =6418369a(6) =17712657a(7) =42921473a(8) =94087249a(9) =190446273a(10) =361259537a(11) =649305089a(12) =1115101521a(13) =1841932225a(14) =2941740049a(15) =4561961985a(16) =6893373521a(17) =10179012289a(18) =14724250641a(19) =20908086785a(20) =29195724113a(21) =40152508353a(22) =54459292177a(23) =72929296897

External references