31113

Appears in sequences

• Numbers k such that (k / product of digits of k) is 1 or a prime.at n=41A001103
• Palindromes whose digits do not appear in previous term.at n=38A030285
• Numbers with multiplicative digital root value 9.at n=30A034056
• Base-10 palindromes that starts with 3.at n=33A043038
• Concatenation of n in base 2 up to base 10 and n in base 10 down to base 2 is prime, all numbers are interpreted as decimals.at n=7A054258
• Numbers with at least 2 distinct digits and whose "rotations" (including the number itself) are multiples of these digits; repeated digits allowed but digit 0 not allowed.at n=24A066484
• a(n) = n concatenated with n 1's and n.at n=2A075859
• Palindromes in A082939.at n=24A082940
• Palindromes in A083114.at n=39A083115
• Multiples of 9 in which there is no common digit in successive terms.at n=28A083497
• a(n) = 3*a(n-1) - a(n-2) + a(n-3), a(0)=1,a(1)=1,a(2)=3.at n=11A098182
• Numbers n such that both numbers n/(d_1*d_2* ...*d_k) and n/(d_1+d_2+ ... +d_k) are prime, where d_1 d_2 ... d_k is the decimal expansion of n.at n=3A107650
• Palindromes which are divisible by the product of their digits.at n=20A117057
• Palindromes which are divisible by the product and by the sum of their digits.at n=15A117228
• Palindromes with digit sum 9.at n=13A121476
• Zeroless palindromes with digit sum 9.at n=10A121477
• a(n) = floor(n^(n^(1/3))).at n=28A157254
• Conway notation for rational 2-component links.at n=25A173637
• Palindromic concatenation of prime divisors of numbers from A192137.at n=45A192138
• T(n,k)=Number of 0..k arrays x(0..n+1) of n+2 elements without any two consecutive increases or two consecutive decreases.at n=43A200838