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Search: id:A056606
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| A056606 |
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Square-free kernel of A002944(n), the LCM of binomial coefficients {C(n,0),...,C(n,n)}. |
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+0
1
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| 1, 2, 3, 6, 10, 30, 105, 70, 42, 210, 2310, 2310, 4290, 6006, 15015, 30030, 170170, 510510, 1939938, 1385670, 881790, 9699690, 223092870, 44618574, 17160990, 74364290, 31870410, 223092870, 6469693230, 6469693230, 100280245065
(list; graph; listen)
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OFFSET
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1,2
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EXAMPLE
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a(7)=105 because LCM[1,7,21,35]=105 is already square-free.
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CROSSREFS
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A002944, A034386, A048633, A003418, A000142, A001405.
Sequence in context: A123256 A111275 A054357 this_sequence A062527 A038752 A125714
Adjacent sequences: A056603 A056604 A056605 this_sequence A056607 A056608 A056609
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KEYWORD
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nonn
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AUTHOR
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Labos E. (labos(AT)ana.sote.hu), Aug 07 2000
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