399999996

Appears in sequences

• Numbers n such that 2n+1 is the digit reversal of n+1.at n=7A083811
• a(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=7A083956
• a(n) = 4*(10^n - 1).at n=8A086575
• Duplicate of A083956.at n=7A094760
• a(n) = n*(1 + n)*(10^n - 1)/18.at n=8A365645