A126227 Mersenne prime A000668(n+1) mod A000668(n).

1, 3, 3, 63, 15, 3, 4095, 1073741823, 268435455, 262143, 1048575, 8191, 77371252455336267181195263, 36893488147419103231

Offset

1,2

Comments

The next term is too large to include.

Links

Table of n, a(n) for n=1..14.

Prog

(PARI) mers(p) = 2^p-1;
lista() = {ve = [2, 3, 5, 7, 13, 17, 19, 31, 61, 89, 107, 127, 521, 607, 1279]; for (i=2, 15, print1(mers(ve[i]) % mers(ve[i-1]), ", "); ); } \\ Michel Marcus, Nov 02 2013

Crossrefs

Cf. A000043.

Sequence in context: A332786 A102065 A102074 * A333827 A213137 A260076

Adjacent sequences: A126224 A126225 A126226 * A126228 A126229 A126230

Keyword

nonn

Author

Artur Jasinski, Dec 21 2006

Extensions

Definition corrected and a(14) from Michel Marcus, Nov 02 2013

Status

approved