90988

Appears in sequences

• Number of (w,x,y,z) with all terms in {1,...,n} and w > (geometric mean of x,y,z).at n=20A212144
• G.f.: Sum_{n>=0} x^n * Sum_{k=0..n} binomial(n,k)^3 * x^(2*k).at n=13A248658
• Number T(n,k) of permutations of [n] with exactly k (possibly overlapping) occurrences of the consecutive step patterns 010 or 101, where 1=up and 0=down; triangle T(n,k), n >= 0, k = max(0, n-3), read by rows.at n=26A295987