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A049077
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a(n)=n/b(n), where b(n)=GCD[n,C(n,[n/2])].
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4
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1, 1, 1, 2, 1, 3, 1, 4, 1, 5, 1, 1, 1, 7, 1, 8, 1, 9, 1, 5, 1, 11, 1, 6, 1, 13, 1, 7, 1, 1, 1, 16, 1, 17, 1, 3, 1, 19, 1, 2, 1, 7, 1, 11, 1, 23, 1, 4, 1, 25, 1, 13, 1, 27, 1, 1, 1, 29, 1, 15, 1, 31, 1, 32, 1, 11, 1, 17, 1, 5, 1, 18, 1, 37, 1, 19, 1, 39, 1, 4, 1, 41, 1, 1, 1, 43, 1, 11, 1, 1, 1, 23
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,4
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EXAMPLE
| for odd n, a(n)=1, for even n, a(n) is either n/2 or smaller, e.g. for n=12, GCD[12,C(12,6)]=GCD[12,924]=12 so a(12)=1
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CROSSREFS
| Cf. A001405.
Sequence in context: A102613 A097019 A085343 * A180184 A077609 A077610
Adjacent sequences: A049074 A049075 A049076 * A049078 A049079 A049080
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KEYWORD
| nonn
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AUTHOR
| Labos E. (labos(AT)ana.sote.hu), Nov 13 2000
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