57671

Appears in sequences

• Numbers k such that the period of the continued fraction for sqrt(k) contains exactly 49 ones.at n=6A031817
• Number of ordered trees with n edges having no odd-length branches starting at the root.at n=13A127539
• Number of zero-sum -2..2 arrays of n elements with first through fourth differences also in -2..2.at n=20A201433