42314

Appears in sequences

• Numbers k such that the continued fraction for sqrt(k) has period 75.at n=34A020414
• Numbers k such that the continued fraction for sqrt(k) has odd period and if the last term of the periodic part is deleted the two central terms are both 24.at n=10A031612
• G.f.: (1 / theta_4(x) - 1)^2 / 4, where theta_4() is the Jacobi theta function.at n=15A338223
• a(n) = (2*n^3 - n^2 + 3*n - 2)/2.at n=34A363288