1,2

The next term is too large to include.

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

(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

Cf. A000043.

Sequence in context: A332786 A102065 A102074 * A333827 A213137 A260076

Adjacent sequences: A126224 A126225 A126226 * A126228 A126229 A126230

nonn

Artur Jasinski, Dec 21 2006

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

approved