34676

Appears in sequences

• Number of permutations of length n which avoid the patterns 4231 and 4123.at n=9A165542
• Number of triangles on a centered hexagonal grid of size n.at n=4A241223
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 297", based on the 5-celled von Neumann neighborhood.at n=38A271150