2333331domain: NAppears in sequencesa(n) = sum of all cyclic permutation of concatenation of first n numbers. In each case the digits of a number are kept together for n>9.at n=5A083956Duplicate of A083956.at n=5A094760a(n) = 111111*n.at n=20A154549a(n) = n*(1 + n)*(10^n - 1)/18.at n=6A365645