339416domain: NAppears in sequencesCoefficient of x^5 in (1-x-x^2)^(-n).at n=27A139798Number of ways to place 3 nonattacking nightriders on an n X n board.at n=11A173429a(n) = 4*binomial(11*n+4,n)/(11*n+4).at n=5A234870