26456

Appears in sequences

• Expansion of (1-x)^(-1)/(1+x-x^2-2*x^3).at n=43A077901
• Poincaré series [or Poincare series] P(C^o_{3,2}; x).at n=14A124633
• Number of ordered trees with n edges and having no protected vertices. A protected vertex in an ordered tree is a vertex at least 2 edges away from its leaf descendants.at n=12A143363
• Number of n X 3 arrays of the minimum value of corresponding elements and their horizontal or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and columns, 0..1 n X 3 array.at n=26A219768
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 785", based on the 5-celled von Neumann neighborhood.at n=30A273559
• Expansion of 1/(1 - x*Product_{k>=1} (1 + x^(2*k))/(1 - x^(2*k-1))).at n=13A302020
• Expansion of g.f. A(x) satisfying A(x)^2 = A( x^2/(1-2*x)^4 ).at n=7A375454