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A058346
a(1) = 1; a(n+1) = LCM( sum{k=1 to n}[a(k)], (product{k=1 to n}[a(k)])*(sum{k=1 to n}[1/a(k)]) ).
0
1, 1, 2, 20, 408, 2249424, 1098000299233152, 1361974282591521291068503774196960256
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OFFSET
1,3
LINKS
Table of n, a(n) for n=1..8.
EXAMPLE
a(4) = LCM(1 +1 +2, 1 *1 *2 *(1 +1 +1/2)) = LCM(4, 5) = 20.
CROSSREFS
Sequence in context:
A210896
A090309
A002116
*
A165554
A366447
A009746
Adjacent sequences:
A058343
A058344
A058345
*
A058347
A058348
A058349
KEYWORD
nonn
AUTHOR
Leroy Quet
, Dec 14 2000
STATUS
approved
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Last modified August 31 23:29 EDT 2024. Contains 375575 sequences. (Running on oeis4.)