84207domain: NAppears in sequencesExpansion of 1/(x^k*(1-x-2*x^(k+1))) for k=7.at n=39A143450Number of length n+3 0..5 arrays with no four elements in a row with pattern abba (possibly a=b) and new values 0..5 introduced in 0..5 order.at n=6A243030Number of partitions of n with up to seven distinct kinds of 1.at n=31A320694