227191

Properties

Appears in sequences

• Numbers in which all pairs of consecutive base-4 digits differ by 2.at n=26A033082
• Base 4 digits are, in order, the first n terms of the periodic sequence with initial period 3,1.at n=8A037583
• Decimal representation of n-th iteration of the Rule 188 elementary cellular automaton starting with a single black cell.at n=17A118173
• a(n) = a(n-1)+a(n-2)+a(n-3)+2*a(n-4), a(0)=1, a(1)=3, a(2)=7, a(3)=15.at n=17A139806
• 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 342", based on the 5-celled von Neumann neighborhood.at n=17A281217
• 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 526", based on the 5-celled von Neumann neighborhood.at n=17A282914
• Prime numbersat n=20196