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A153060
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a(-1)=2, a(n)=a(n-1)^2-n.
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6
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4, 15, 223, 49726, 2472675072, 6114122011690205179, 37382487973834681475536573127118422035, 1397450407113894589170760370457882734663916414838438245542265330668373541218
(list; graph; refs; listen; history; internal format)
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