1046556

Appears in sequences

• Number of permutations of 2 indistinguishable copies of 1..n arranged in a circle with exactly 4 adjacent element pairs in decreasing order.at n=4A151585
• 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 313", based on the 5-celled von Neumann neighborhood.at n=19A281041