OFFSET
1,2
COMMENTS
Table 1, section a=3, by Paszkiewicz et al.
LINKS
A. Paszkiewicz and A. Rotkiewicz, On a Problem of H. J. A. Duparc, Tatra Mt. Math. Publ. 32 (2005) 15-32, MR2206908.
MAPLE
filter:= n -> 5 &^ (2*n-1) - 3 &^ (2*n-1) mod (2*n) = 0:
select(filter, [seq(seq(i+30*j, i=[1, 7, 11, 13, 17, 19, 23, 29]), j=0..10^6)]); # Robert Israel, Oct 26 2017
PROG
(Magma) [n: n in [1..70000] | (5^(2*n-1)-3^(2*n-1)) mod (2*n) eq 0]; // Vincenzo Librandi, Oct 26 2017
CROSSREFS
KEYWORD
nonn
AUTHOR
R. J. Mathar, Aug 22 2012
EXTENSIONS
1 inserted, and more terms added by Robert Israel, Oct 26 2017
STATUS
approved