42631

Appears in sequences

• Numbers k such that the period of the continued fraction for sqrt(k) contains exactly 43 ones.at n=4A031811
• Numerators of continued fraction convergents to sqrt(435).at n=7A041828
• Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 1100-0100-0111 pattern in any orientation.at n=11A146438
• a(n) = 4802*n^2 - 196*n + 1.at n=2A157364