OFFSET
0,3
COMMENTS
Conjecture A in page 32 of the Hardy and Littlewood reference implies that a(n) != -1 for all n > 1. While the sequence is not monotonic, the plot of n versus a(n)/log(a(n))^2 has a linear trend which matches with the formula for the number of representations in Conjecture A.
LINKS
G. H. Hardy and J. E. Littlewood, Some problems of 'Partitio numerorum'; III: On the expression of a number as a sum of primes, Acta Mathematica, volume 44, pages 1-70 (1923).
CROSSREFS
KEYWORD
sign
AUTHOR
Chai Wah Wu, Mar 11 2022
STATUS
approved