283107domain: NAppears in sequencesNumber of subsequences of {1..n} such that all differences of pairs of terms are distinct (i.e., number of Golomb rulers on {1..n}).at n=33A054578Number of reduced words of length n in the Weyl group B_22.at n=6A161900Number of reduced words of length n in the Weyl group D_22.at n=6A162364