41827

Appears in sequences

• Numbers k such that the period of the continued fraction for sqrt(k) contains exactly 81 ones.at n=0A031849
• Number of partitions satisfying cn(0,5) + cn(2,5) <= cn(1,5) + cn(4,5) and cn(0,5) + cn(3,5) <= cn(1,5) + cn(4,5).at n=42A039887