309937domain: NPropertiesPrimalityPrimeyesAppears in sequencesNumber of (s(0), s(1), ..., s(n)) such that 0 < s(i) < 7 and |s(i) - s(i-1)| <= 1 for i = 1,2,...,n, s(0) = 1, s(n) = 1.at n=15A094287Number of cells in regular n-gon after 2 generations of mitosis.at n=30A349807Prime numbersat n=26798