31086

Appears in sequences

• a(n)^2 is a square whose decimal expansion digits occur with an exact frequency of 3.at n=11A052095
• Numbers k such that k^2 contains only digits {3,6,9}.at n=7A053948
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 521", based on the 5-celled von Neumann neighborhood.at n=32A272736
• Numbers k such that (85*10^k - 103)/9 is prime.at n=21A290433