5555555

Appears in sequences

• a(n) = 5*(10^n - 1)/9.at n=7A002279
• a(n) = floor(10^8/n).at n=17A033424
• Worthless numbers: numbers without h, o, r, t, or w.at n=13A073419
• Squarefree numbers obtained by repeating a single digit.at n=34A077571
• Number of edges in the n-th Mycielski graph.at n=15A122695
• a(10n+m) is the integer with n+m concatenations of the digit m in base 10, 0<=m<=9.at n=24A158849
• First repdigit number with n digits occurring in the decimal expansion of e, starting after the decimal point.at n=6A244602
• Sphenic numbers having identical digits.at n=14A268582
• Value of decimal number corresponding to the string of equal digits starting at position A277259(n) after the decimal point in the decimal expansion of the Golden ratio (phi).at n=6A277260
• Expansion of x*(1 + 5*x + 40*x^2)/((1 - x^2)*(1 - 10*x^2)).at n=14A322927
• Numbers of the form N = a+b+c such that N^3 = concat(a,b,c); a, b, c > 0.at n=28A328198
• Numbers k such that the infinite sequence of digits consisting of the final digit of k^m for m = 2, 3, 4, ... is the same as the sequence of digits obtained by concatenating infinitely many copies of k.at n=30A344555
• Numbers m with decimal expansion (d_1, ..., d_k) such that d_i = m ^ i mod 10 for i = 1..k.at n=35A344823