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
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. [Annotated scan of page 713 only].
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
N. J. A. Sloane, Nov 14 2019
STATUS
approved