75049

Appears in sequences

• a(n) = n + Fibonacci(n+1).at n=24A081659
• The non-common part of the smaller number of an amicable pair.at n=30A180326
• 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 419", based on the 5-celled von Neumann neighborhood.at n=17A282071