980232domain: NAppears in sequencesSum of (Gaussian) q-binomial coefficients for q=-9.at n=5A015173From solution to a counting problem.at n=30A059775Number of 10-element subsets of [n+10] having an even sum.at n=14A282078Number of n-element subsets of [n+10] having an even sum.at n=14A282086