69210domain: NAppears in sequencesNumber of permutations of floor(i*5/3), i=0..n-1, with all sums of two and three adjacent terms respectively unique.at n=8A147926G.f. satisfies: A(x) = Sum_{n>=0} x^n * (1 + A(x))^n * A(x)^(n*(n+1)/2).at n=6A192259Sigma(n)-n values in A085844.at n=27A216383