Hofstadter Figure-Figure sequences: Difference between revisions

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Math is math
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R(n)&=R(n-1)+S(n-1), \quad n>1.
\end{align}</math>
:The sequence <math>S(''n'')</math> is further defined as the sequence of positive integers ''not'' present in <math>R(''n'')</math>.
Sequence R starts: 1, 3, 7, 12, 18, ...<br>
Sequence S starts: 2, 4, 5, 6, 8, ...
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