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A147638 The numbers B associated with the search for records in the ABC conjecture constrained as described in A147639. 14
3, 7, 15, 27, 63, 125, 1701 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

The standard way to search for records in the ABC conjecture is to run with the C parameter through all the integers A000027. If this search space is diluted by admitting only powers of 2 as in A147639, the sequence of records changes. This sequence here lists the B such that the triples (A=A147640(n), B=a(n), C=A147639(n)) locate records for this search restricting C to powers of 2.

LINKS

Table of n, a(n) for n=1..7.

Abderrahmane Nitaj, The ABC conjecture homepage

CROSSREFS

Cf. A085152, A085153, A147298-A147307, A147638-A147643.

Sequence in context: A146228 A139806 A143701 * A147394 A103021 A025587

Adjacent sequences:  A147635 A147636 A147637 * A147639 A147640 A147641

KEYWORD

nonn,more

AUTHOR

Artur Jasinski, Nov 09 2008

EXTENSIONS

Definition and commend edited by R. J. Mathar, Aug 28 2009

STATUS

approved

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Last modified April 14 15:18 EDT 2021. Contains 342949 sequences. (Running on oeis4.)