10468982784domain: NAppears in sequencesA hierarchical sequence (S(W'2{3}*c) - see A059126).at n=25A0591628th binomial transform of (1,7,0,0,0,0,0,...).at n=10A081043n*(n-1)*4^n.at n=13A128798Number of ascending runs in {1,...,4}^n.at n=15A229278Number of 4-cycles in the n-Sierpinski tetrahedron graph.at n=15A292542