35144

Appears in sequences

• a(n) = floor(binomial(2*n,n)/3^n).at n=45A024503
• Matrix logarithm of triangle A111553.at n=29A111560
• Column 1 of A111560, which is the matrix log of A111553.at n=6A111561
• Number of (w,x,y) with all terms in {0,...,n} and |w-x|+|x-y|+|y-w| != w+x+y.at n=32A213485
• Number of semi-infinite curves of the plane with n simple, transverse self-intersections and no other self-intersections, up to an orientation-preserving homeomorphism.at n=6A373325