1340976domain: NAppears in sequencesExpansion of 1/((1-2x)(1-7x)(1-8x)(1-11x)).at n=5A028007a(n) = n^5 - n^4 + n^3 - n^2 + n - 1.at n=17A062159Number of 4-cycles in the n-Mycielski graph.at n=8A367986