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A048299
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Let b(n) = A048273(n) = maximal number of prime factors of C(n,k) for k=0..n; sequence gives smallest value of k achieving b(n).
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2
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0, 1, 1, 2, 2, 1, 2, 4, 3, 4, 4, 6, 6, 5, 4, 8, 8, 6, 6, 8, 8, 8, 8, 10, 5, 6, 12, 10, 10, 9, 10, 12, 12, 16, 15, 16, 16, 18, 18, 20, 20, 18, 18, 20, 16, 13, 16, 19, 20, 15, 20, 17, 18, 21, 24, 20, 21, 21, 21, 28, 29, 21, 21, 32, 32, 28, 29, 32, 32, 32, 28, 28, 29, 32, 32, 32, 35, 32
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OFFSET
| 1,4
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EXAMPLE
| n=50, the number of distinct prime factors of C[ 50,k ] can be 0,2,3,4,5,6,7,8,9,10. The maximum is reached at several positions k=15,17,...,33,35. Thus a[ 50 ]=15,far from the central C[ 50,25 ].
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CROSSREFS
| A001221, A048273, A001405, A048571.
Sequence in context: A128176 A144963 A035374 * A144218 A098691 A035364
Adjacent sequences: A048296 A048297 A048298 * A048300 A048301 A048302
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KEYWORD
| nonn
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AUTHOR
| Labos E. (labos(AT)ana.sote.hu)
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