58277

Appears in sequences

• Discriminants of real quadratic fields with class number 2 and related continued fraction period length of 23.at n=33A051988
• Numbers k such that k, k+2, k+4, k+6, k+8, k+10 are semiprimes.at n=24A092128
• Expansion of (2/(3*sqrt(1-4*z)-1+4*z))*((1-sqrt(1-4*z))/(2*z))^k with k=10.at n=6A172067
• Number of unimodal maps [1..n]->[0..3].at n=16A223659
• Least integer k>1 such that sqrt(k)/log(k) exceeds n.at n=21A262058
• The number of vertices on a 2 by 1 ellipse formed by the straight line segments mutually connecting all points formed by dividing the ellipse into 2n equal angle sectors from its origin.at n=17A341762
• a(n) = Sum_{k=0..n} (-1)^k * binomial(3*n-k+4,n-k).at n=6A390591