52085domain: NAppears in sequencesExpansion of 1/(1-x^4-x^5-x^6-x^7-x^8-x^9-x^10-x^11-x^12-x^13-x^14).at n=40A017836a(n)=(5/3)*(1+2*(-5)^(n-1)).at n=7A165625Expansion of Product_{k>=1} (1 + (1 + x + x^2) * x^k).at n=35A309173