40999

Appears in sequences

• Numbers n such that 9^n + 8 is prime.at n=14A217385
• Numbers n whose reversal is a multiple of the reversal of n+1.at n=14A250603
• Decimal representation of the x-axis, from the origin to the right edge, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 270", based on the 5-celled von Neumann neighborhood.at n=25A280467