39355

Appears in sequences

• First of three consecutive Ulam numbers (A002858) in arithmetic progression with difference 22.at n=22A068856
• a(n) = 441*n^2 - 488*n + 135.at n=9A157730
• Solutions y of the Mordell equation y^2 = x^3 - 3a^2 - 1 for a = 0,1,2, ... (solutions x are given by A053755).at n=17A173200
• Number of permutations of [n] avoiding {2143, 4132, 1324}.at n=10A294815
• Number of compositions of n where the gcd of the parts equals the median of the parts.at n=16A388070