343343

Appears in sequences

• Palindromes that are the sum of two positive cubes.at n=23A162710
• a(n) = concatenation of n^3 with itself.at n=6A175605
• 7^n concatenated with itself.at n=3A206529
• Numbers k such that sum of square of prime divisors of k equals sum of prime divisors of k+1.at n=13A228181
• Fixed points of A153212: After a(1) = 1, numbers of the form p_i1^i1 * p_i2^(i2-i1) * p_i3^(i3-i2) * ... * p_ik^(ik-i_{k-1}), where p_i's are distinct primes present in the prime factorization of n, with i1 < i2 < i3 < ... < ik, and k = A001221(n) and ik = A061395(n).at n=58A242421
• Palindromic numbers such that the sum of the digits equals the number of divisors.at n=37A263720
• After a(1) = 1, the sequence is always extended with the smallest divisor d (not yet present in the sequence) of the last term t. If d doesn't exist, we extend the sequence with tt (t concatenated to itself). If tt doesn't produce a new d, we extend the sequence with ttt, etc. See the Comments section for more details.at n=50A348871
• a(n)/144 is the maximum squared volume of a tetrahedron with the sum of its integer edge lengths equal to n.at n=36A371073