98446

Appears in sequences

• Numbers k such that 7*10^k + 8*R_k + 1 is prime, where R_k = 11...1 is the repunit (A002275) of length k.at n=11A103067
• Numbers k such that k and k^2 use only the digits 1, 4, 6, 8 and 9.at n=22A137055
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 643", based on the 5-celled von Neumann neighborhood.at n=41A273314