A098773 p*2^p + 1 where p is prime.

9, 25, 161, 897, 22529, 106497, 2228225, 9961473, 192937985, 15569256449, 66571993089, 5085241278465, 90159953477633, 378231999954945, 6614661952700417, 477381560501272577, 34011184385901985793

Offset

1,1

Links

Table of n, a(n) for n=1..17.

Example

If p=3, then 3*2^3 + 1 = 25.

Mathematica

Table[p = Prime[n]; p*2^p + 1, {n, 17}] (* Robert G. Wilson v, Nov 04 2004 *)

Crossrefs

Cf. A098640.

Sequence in context: A146365 A146373 A084605 * A089998 A014728 A223646

Adjacent sequences: A098770 A098771 A098772 * A098774 A098775 A098776

Keyword

nonn

Author

Parthasarathy Nambi, Oct 30 2004

Extensions

More terms from Robert G. Wilson v, Nov 04 2004

Status

approved