18682

Appears in sequences

• Numbers m such that A006218(m) is a perfect square.at n=39A175345
• a(1)=4. a(n+1) = a(n)+d-1, where d is the smallest prime divisor of (a(n)-1)*(a(n)+1).at n=46A177929
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 51", based on the 5-celled von Neumann neighborhood.at n=29A270020
• Partial sums of A175046.at n=43A324127