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A275664
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a(n) is the sum of the LCM and GCD of all previous terms, with a(0) = 2.
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2
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OFFSET
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0,1
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COMMENTS
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Starting from 1, instead of from 2, it is generated A129871 (A variant of Sylvester's sequence A000058).
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LINKS
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FORMULA
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a(0) = 2, a(n+1) = lcm(a(0),a(1),..,a(n)) + gcd(a(0),a(1),..,a(n)).
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MATHEMATICA
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a = {2}; Do[AppendTo[a, LCM @@ a + GCD @@ a], {i, 1, 10}]; Column[a]
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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