27875

Appears in sequences

• T(n,n-3), array T as in A038730.at n=8A038732
• T(2n+6,n), array T as in A038792.at n=8A038799
• Row sums of triangle A105537, which equals the matrix square of triangle A105535.at n=12A105538
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 950", based on the 5-celled von Neumann neighborhood.at n=34A273829
• Solution of the complementary equation a(n) = 2*a(n-2) - b(n-2) + n, where a(0) = 3, a(1) = 4, b(0) = 1, and (a(n)) and (b(n)) are increasing complementary sequences.at n=27A295069
• Expansion of -1/(1 - x)^2 + (1/(1 - x))*Product_{k>=1} (1 + x^k).at n=49A317910
• Number of Grassmannian permutations of size n that avoid a pattern, sigma, where sigma is a pattern of size 6 with exactly one descent.at n=21A362193