558144

Appears in sequences

• Expansion of (1+x^4*C^3)*C^3, where C = (1-(1-4*x)^(1/2))/(2*x) is g.f. for Catalan numbers, A000108.at n=11A071752
• a(n) = (n-2)^4 - a(n-1) - a(n-2), with a(1) = a(2) = 0.at n=36A152729
• Table read by downward diagonals: T(n,k) = number of skeleta of (3+1)-free posets with n clone sets and k tangles.at n=38A221494
• Decimal representation of the x-axis, from the left edge to the origin, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 393", based on the 5-celled von Neumann neighborhood.at n=23A281741