333333334

Appears in sequences

• a(n)^2 is smallest square starting with a string of n 1's.at n=8A034978
• Numbers k such that k^2 contains only digits {1,5,6}.at n=18A053902
• Numbers m that divide the concatenation of m+1 and m+2.at n=28A069860
• Expansion of (1-7*x)/((1-x)*(1-10*x)).at n=9A093137
• Numbers k such that the k-th triangular number contains only digits {4,5,9}.at n=17A119209
• An explicit example of an infinite sequence with a(1)=1 and, for n >= 2, a(n) and S(n) = Sum_{i=1..n} a(i) have no digit in common.at n=18A308900
• Positive integers k such that A270710(k) (= (k+1)*(3*k-1)) have only 1 or 2 different digits in base 10.at n=35A322570