1,4

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 A such that the triples (A=a(n),B=A147638(n),C=A147639(n)) locate

records for this search when C is restricted to powers of 2.

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

Sequence in context: A134894 A143700 A036790 this_sequence A096615 A127551 A023138

Adjacent sequences: A147637 A147638 A147639 this_sequence A147641 A147642 A147643

nonn

Artur Jasinski (grafix(AT)csl.pl), Nov 09 2008

Definition and comment edited by R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Aug 28 2009