5261760domain: NAppears in sequencesNumber of identity bracelets with n labeled beads of 4 colors.at n=6A032339n! times sum of Farey fractions of order n.at n=8A093593Triangle T(n,m) = coefficient of x^n in expansion of [x*(x+1)^(x+1)]^m = sum(n>=m, T(n,m) x^n*m!/n!).at n=48A202190