56532

Appears in sequences

• Numbers k such that k^2 contains every digit at least once.at n=29A054038
• Number of unlabeled connected bicolored graphs on 2n nodes which are invariant when the two color classes are interchanged.at n=7A123549
• Numbers n such that n^2 contains every decimal digit exactly once.at n=29A156977
• Triangle T(n,k) defined by Sum_{k=1..n} T(n,k)*u^k*x^n/n! = exp(Sum_{n>0} u*d(n)*x^n/n!), where d(n) is the number of divisors of n.at n=40A338870
• Numbers k sandwiched between twin primes, such that k times the reverse of k is also sandwiched between twin primes.at n=35A357076