293764domain: NAppears in sequencesNumber of n X 7 binary arrays without the pattern 0 1 diagonally or antidiagonally.at n=17A188822Expansion of e.g.f.: exp(4*x/(1-3*x)) / sqrt(1-9*x^2).at n=5A202829Squares which have one or more occurrences of exactly six different digits.at n=27A235721