OFFSET
2,4
COMMENTS
First of two constants given on p. 2 of Languasco-Settimi.
LINKS
Alessandro Languasco, Valentina Settimi, On a Diophantine problem with one prime, two squares of primes and s powers of two - Acta Arithmetica, 154 (2012), 385--412 (preliminary version, arXiv:1103.1985 [math.NT], 2011).
Alessandro Languasco, Alessandro Zaccagnini, On a diophantine problem with two primes and s powers of two, Acta Arithm. 145 (2) (2010) 193-208, eq (1.4).
FORMULA
Equals 2*B*(1+A(1)) with B=3.9171... and A(1) = 0.2792521041... (Languasco-Zaccagnini).
EXAMPLE
10.021916834....
CROSSREFS
KEYWORD
AUTHOR
Jonathan Vos Post, Mar 11 2011
STATUS
approved