333334

Appears in sequences

• a(n)^2 is smallest square starting with a string of n 1's.at n=5A034978
• Numbers k such that k^2 contains only digits {1,5,6}.at n=12A053902
• Numbers m that divide the concatenation of m+1 and m+2.at n=19A069860
• Numbers k with the property that k divides one of the concatenations (k-1)(k-2) or (k-2)(k-1).at n=23A077292
• Expansion of (1-7*x)/((1-x)*(1-10*x)).at n=6A093137
• Numbers k such that the k-th triangular number contains only digits {4,5,9}.at n=10A119209
• Numbers whose square starts with 5 identical digits.at n=29A119866
• Numbers whose square starts with 6 identical digits.at n=1A119887
• Numbers k such that k and k^2 use only the digits 1, 3, 4, 5 and 6.at n=21A137021
• Integers n such that digits in n and n^2 are in nondecreasing order.at n=42A234841
• Numbers of the form (10^a + 10^b + 1)/3.at n=21A237424
• 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=12A308900
• Positive integers k such that A270710(k) (= (k+1)*(3*k-1)) have only 1 or 2 different digits in base 10.at n=28A322570
• Number of successive occurrences of the same first digits in A366585.at n=51A366610
• Square array: T(n,k) = ((3^(n+1) + 1)^(k-1) + 2)/3, read by descending antidiagonals.at n=21A374258
• Numbers k such that k*(k-1) is composed of exactly two different decimal digits.at n=35A380974