221064

Appears in sequences

• y values corresponding to the x values in A023677.at n=57A023678
• Denominators of continued fraction convergents to sqrt(94).at n=15A041169
• Write fundamental unit for real quadratic field of discriminant n as x + y*omega; sequence gives values of y for n == 2 mod 4.at n=19A053374
• a(n) is smallest natural number a satisfying Pell equation b^2- d(n)*a^2= +1 or = -1, with d(n)=A000037(n) (nonsquare). Corresponding smallest b(n)=A077232(n).at n=84A077233