110101

Appears in sequences

• Least positive multiple of n written in base 5 using only 0 and 1.at n=31A004285
• Least positive multiple of n written in base 9 using only 0 and 1.at n=21A004289
• Least positive multiple of n that when written in base 10 uses only 0's and 1's.at n=22A004290
• Primes written in base 2.at n=15A004676
• Roots of 'non-palindromic cubes remaining cubic when written backwards'.at n=10A035125
• Numbers k such that k is a substring of its base-2 representation.at n=31A038102
• Lexicographically earliest strictly increasing base 4 autovarious sequence: a(n) = number of distinct a(k) mod 4^n (written in base 4).at n=31A038113
• Sums of 4 distinct powers of 10.at n=10A038446
• Coefficients of monic primitive irreducible polynomials over GF(3) listed in lexicographic order.at n=23A058949
• Numbers such that first reversing digits and after forming its cube equals the result of first-form-cube and after-reverse operation with exclusion of cases divisible by 10.at n=23A085315
• Smallest multiple of n using only one nonzero digit.at n=22A088599
• a(n) = 53 written in base n.at n=1A095498
• a(n) = 53 written in base 13 - n.at n=11A095499
• Odd positive integers in base 2 (bisection of A007088).at n=26A099821
• Concatenate (1,n,n,1).at n=10A100846
• Dual Zeckendorf representation of n or the maximal (binary) Fibonacci representation. Also list of binary vectors not containing 00.at n=25A104326
• Semiprimes consisting of digits 0 and 1 only.at n=10A105991
• Binary strings that have 1's where primes occur, 0's elsewhere and every term ends with the n-th prime index.at n=3A109227
• Sequence A115849 in binary.at n=19A115850
• A116641 in binary.at n=12A116642