OFFSET
0,4
COMMENTS
Conjectured to be always positive for n > 2.
REFERENCES
Lew Baxter, Exponential Diophantine Equations, post to NmbrThry list, Oct 25 2012
MATHEMATICA
Table[Mod[Floor[7^n/2^n], 2^n], {n, 0, 29}] (* Alonso del Arte, Oct 25 2012 *)
PROG
(PARI) a(n)=7^n\2^n%2^n
(Maxima) A211995(n):=mod(floor( 7^n / 2^n ), 2^n); makelist(A211995(n), n, 0, 30); /* Martin Ettl, Oct 25 2012 */
CROSSREFS
KEYWORD
nonn
AUTHOR
M. F. Hasler, Oct 25 2012
STATUS
approved