81941

Appears in sequences

• Numbers n such that m + (sum of digits in base-4 representation of m) = n has exactly three solutions.at n=17A230635
• Decimal representation of the x-axis, from the left edge to the origin, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 393", based on the 5-celled von Neumann neighborhood.at n=16A281741