A112985 2^(2^n mod n-1).

1, 4, 1, 1, 2, 1, 16, 4, 16, 1, 128, 256, 16, 256, 16, 256, 2, 1, 16, 4, 16, 4096, 65536, 256, 16, 256, 16384, 256, 33554432, 16, 16, 256, 16, 1, 65536, 256, 2, 1048576, 16, 256, 65536, 4294967296, 16, 4, 16, 4294967296, 17179869184, 256, 16, 4294967296, 2048

Offset

0,2

Links

Harvey P. Dale, Table of n, a(n) for n = 0..1000

Formula

a(n)=2^A112983(n).

Mathematica

Join[{1, 4}, Table[2^PowerMod[2, n, n-1], {n, 2, 60}]] (* Harvey P. Dale, Jan 17 2017 *)

Crossrefs

Sequence in context: A010324 A016525 A077604 * A293769 A073693 A360916

Adjacent sequences: A112982 A112983 A112984 * A112986 A112987 A112988

Keyword

easy,nonn

Author

Paul Barry, Oct 08 2005

Status

approved