

A187549


Arises in a Diophantine problem with one prime, two squares of primes and s powers of two.


0



1, 0, 0, 2, 1, 9, 1, 6, 8, 3, 4, 0
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OFFSET

2,4


COMMENTS

First of two constants given on p. 2 of LanguascoSettimi.


LINKS

Table of n, a(n) for n=2..13.
Alessandro Languasco, Valentina Settimi, On a Diophantine problem with one prime, two squares of primes and s powers of two  Acta Arithmetica, 154 (2012), 385412 (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) 193208, eq (1.4).


FORMULA

Equals 2*B*(1+A(1)) with B=3.9171... and A(1) = 0.2792521041... (LanguascoZaccagnini).


EXAMPLE

10.021916834....


CROSSREFS

Sequence in context: A078088 A206243 A316711 * A261124 A100945 A133399
Adjacent sequences: A187546 A187547 A187548 * A187550 A187551 A187552


KEYWORD

nonn,cons,less


AUTHOR

Jonathan Vos Post, Mar 11 2011


STATUS

approved



