3074400domain: NAppears in sequencesE.g.f.: (1-x)/(1-3*x+x^2).at n=7A052568Number of permutations of floor(i*5/4), i=0..n-1, with all sums of 7 adjacent terms unique.at n=9A152633Expansion of e.g.f. log(1 + Sum_{k>=1} x^(k^2)/k^2).at n=10A305620