20991

Appears in sequences

• Numbers k such that the continued fraction for sqrt(k) has even period and if the last term of the periodic part is deleted the central term is 96.at n=38A031594
• Records in the sequence A024573 defined by [1/{n*e}], {x} := x - [x].at n=13A101262
• List of different composites in Pascal-like triangles with index of asymmetry y = 3 and index of obliqueness z = 0 or z = 1.at n=30A141069
• A sequence of asymptotic density zeta(10) - 1, where zeta is the Riemann zeta function.at n=20A143036
• Sum of the areas of all bargraphs of site-perimeter n.at n=17A274208