56162

Appears in sequences

• Triangle T(n,k), n>=1, read by rows, where T(n,k) is the number of lattice polygons with area n and perimeter 2*k.at n=37A008855
• Expansion of g.f. -x*(10*x^4+12*x^3-x^2-3*x-3)/((x^2+x-1)*(4*x^3+x^2-x-1)).at n=20A134704
• Triangle T(n,k), n>=1, 2<=k<=n+1, read by rows, where T(n,k) is the number of self-avoiding square-lattice polygons by area n and perimeter 2*k.at n=75A259857
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 549", based on the 5-celled von Neumann neighborhood.at n=37A272844