A147638 The numbers B associated with the search for records in the ABC conjecture constrained as described in A147639.

3, 7, 15, 27, 63, 125, 1701

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 * A343440 A147394 A350370

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