101263

Appears in sequences

• Numbers k such that the period of the continued fraction for sqrt(k) contains exactly 55 ones.at n=12A031823
• Semiprimes which are products of two primes each with half the number of digits, and which when split in the middle gives two primes; no leading zeros.at n=19A243749
• Number of n-node unlabeled rooted trees with thinning limbs and root outdegree (branching factor) 9.at n=15A244710