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Search: id:A144365
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| A144365 |
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Positive terms give the greatest multiple of A143176(n) less than or equal to A143176(n + 1) when A143176 increases; negative terms give the negated least divisor of A143176(n) resulting in a value less than or equal to A143176(n + 1) when A143176 decreases. |
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+0
1
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| 2, 3, 2, 2, 1, 2, 1, 1, 1, 2, 1, 2, -2, 1, 1, 2, -2, 3, -2, 1, 1, 4, -2, 1, 1, 1, -2, 2, -2, 3, -3, 1, 1, 1, 1, 3, -2, -2, 1, 3, -3
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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It appears that the multipliers approach infinity while the divisors approach some finite value, although both are increasing over the given range.
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EXAMPLE
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A143176(3) = 6. Multiplying by two gives 12, the next term, so a(3) = 2.
A143176(13) = 1560. Until now A143176 has always increased, but A143176(14) = 1260. Dividing by two gives 780; a(13) = -2.
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CROSSREFS
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Cf. A143176
Sequence in context: A086764 A076224 A114729 this_sequence A152197 A049342 A112966
Adjacent sequences: A144362 A144363 A144364 this_sequence A144366 A144367 A144368
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KEYWORD
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hard,more,sign
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AUTHOR
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Reikku Kulon (reikku(AT)gmail.com), Sep 18 2008
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