209975domain: NAppears in sequencesExpansion of 1/(1-x^2-x^3-x^4-x^5-x^6-x^7).at n=29A013984a(n) = a(n-2) + a(n-3) + a(n-4) + a(n-5) + a(n-6) + a(n-7).at n=28A107479