83488domain: NAppears in sequencesNumber of bracelets consisting of four instances each of n swappable colors.at n=4A362658Number of compositions of 5*n-2 into parts 4 and 5.at n=16A369850Expansion of 1 / ((1-x)^4 - x^5).at n=17A390044a(n) = Sum_{k=0..floor(n/2)} binomial(k+1,2*n-4*k+1).at n=39A392489