27345

Appears in sequences

• Number of nonempty subsets of {1,2,...,n} in which exactly 1/5 of the elements are <= (n-1)/2.at n=21A047176
• Number of nonempty subsets of {1,2,...,n} in which exactly 1/5 of the elements are <= (n-2)/2.at n=21A047187
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 73", based on the 5-celled von Neumann neighborhood.at n=33A270089
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 73", based on the 5-celled von Neumann neighborhood.at n=34A270089
• Expansion of Product_{k>=1} (1 - x^k)^A000593(k).at n=36A316366
• The 100 terms of the cycle that A321021 goes into.at n=55A321022