5555555555

Appears in sequences

• a(n) = 5*(10^n - 1)/9.at n=10A002279
• a(n)*n = A112900(n).at n=9A112901
• Let s(n) be the smallest number x such that the decimal representation of n appears as a substring of the decimal representations of the numbers [0...x] more than x times.at n=4A164321
• a(n) is the smallest number x such that the decimal representation of n appears as a substring of the decimal representations of the numbers [1...x] >= x times.at n=5A164935
• Repdigit numbers n such that the repeated digit of n is equal to the digital root of n.at n=26A271569
• Expansion of x*(1 + 5*x + 40*x^2)/((1 - x^2)*(1 - 10*x^2)).at n=20A322927
• a(n) is the length of the decimal expansion of A330192(n)^A330192(n).at n=38A330193
• Repdigit numbers (A010785) in A157037.at n=11A353704