45190domain: NAppears in sequencesa(n) = T(2n,n+4), T given by A026725.at n=6A026844Number of (w,x,y) with all terms in {0,...,n} and |w-x| + |x-y| != w+x+y.at n=35A213480a(n) = Sum_{k=1..n} (-1)^(k+1) * floor(n/(2*k-1))^3.at n=35A350163