36663

Appears in sequences

• Numbers k such that phi(k) + 2 | sigma(k + 2).at n=26A015781
• Powers of fifth root of 22 rounded down.at n=17A018177
• Numbers that are palindromic, divisible by 11 and have an odd number of digits.at n=32A045571
• Palindromes with exactly 4 palindromic prime factors (counted with multiplicity).at n=14A046378
• Palindromes expressible as the sum of 3 consecutive palindromes.at n=29A046498
• a(1) =3, a(n) = smallest multiple of a(n-1) (not equal to 10^k*a(n-1)) obtained by inserting digits anywhere in a(n-1).at n=3A080488
• a(1) = 3; for n>1, a(n) = smallest palindromic multiple of a(n-1) obtained by inserting digits anywhere in a(n-1).at n=3A082778
• Number of permutations of length n which avoid the patterns 1234, 3421, 4312.at n=41A116756
• a(1) = 3, a(n) = smallest palindromic nontrivial multiple of a(n-1) containing all decimal digits of a(n-1).at n=3A342345
• a(n) is the least positive integer that can be expressed as the sum of two distinct nonzero decimal palindromes in exactly n ways.at n=49A364836