10861060domain: NAppears in sequencesExpansion of 1/((1-x)^7 - x^7).at n=20A049017Number of closed walks of length n at a vertex of the cyclic graph on 7 nodes C_7.at n=26A094659p-INVERT of (1,1,1,1,1,...), where p(S) = 1 - S^7.at n=26A290994