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 A064171 a(1) = 1; a(n+1) = product of numerator and denominator of the continued fraction, [a(1); a(2), a(3),..., a(n)]. 0
 1, 1, 2, 15, 3542, 44438728965, 87757630046458789424678387797052 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,3 COMMENTS Numerator and denominator in definition have no common divisors >1. LINKS EXAMPLE [a(1); a(2), a(3)] = 1 + 1/(1 + 1/2) = 5/3. So a(4) = 5 * 3 = 15. CROSSREFS Sequence in context: A068409 A096232 A193869 * A135085 A290042 A080911 Adjacent sequences:  A064168 A064169 A064170 * A064172 A064173 A064174 KEYWORD nonn AUTHOR Leroy Quet, Sep 19 2001 STATUS approved

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