240295domain: NAppears in sequencesNumber of coverings of {1..n} by translation and reflection of a single set.at n=11A096203Numbers k such that 2^k + 11 is prime.at n=29A102633G.f. is the polynomial (Product_{k=1..17} (1 - x^(3*k)))/(1-x)^17.at n=7A162637