295297domain: NAppears in sequencesLucky numbers that are concatenations of n with n + 2.at n=26A032652Number of increasing planar st-graphs with n edges.at n=10A236408Number of 2Xn arrays of permutations of 0..n*2-1 with rows nondecreasing modulo 6 and columns nondecreasing modulo 7.at n=8A264863