|
|
A328995
|
|
Dirichlet g.f. = Product_{primes p == 1 mod 3} (1+p^(-s))/(1-p^(-s)).
|
|
0
|
|
|
1, 2, 2, 2, 0, 2, 2, 2, 2, 0, 2, 2, 2, 2, 0, 4, 2, 2, 2, 0, 0, 2, 4, 2, 0, 2, 2, 2, 2, 0, 2, 0, 2, 2, 0, 2, 4, 2, 2, 0, 2, 4, 0, 4, 0, 2, 2, 2, 0, 0, 4, 2, 2, 0, 0, 2, 2, 2, 2, 0, 2, 2, 2, 2, 0, 0, 2, 4, 2, 0, 2, 4, 2, 2, 0, 0, 2, 2, 4, 0, 4, 2, 0, 2, 0
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
0,2
|
|
REFERENCES
|
Baake, Michael, and Peter AB Pleasants. "Algebraic solution of the coincidence problem in two and three dimensions." Zeitschrift für Naturforschung A 50.8 (1995): 711-717. See p. 713.
Baake, M. and P. A. B. Pleasants. "The coincidence problem for crystals and quasicrystals." Aperiodic, vol. 94, pp. 25-29. 1995.
|
|
LINKS
|
|
|
PROG
|
(PARI) t1=direuler(p=2, 2400, (1+(p%3<2)*X))
t2=direuler(p=2, 2400, 1/(1-(p%3<2)*X))
t3=dirmul(t1, t2)
t4=vector(200, n, t3[6*n+1]) \\ (and then prepend 1)
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|