A122623 {2^n}_{2^n}.

2, 4, 8, 22, 98, 388, 16648, 132358, 1311234, 1073743876, 17179877384, 274877943814, 4398113693698, 72083983122432004, 3458834890081107976, 110681871838615896070, 38686511673635471463677954, 2475908412805686633409019908, 198070557401964757114570145800

Offset

1,1

Comments

See A122618 for notation.

Links

Table of n, a(n) for n=1..19.

Crossrefs

Sequence in context: A002075 A337720 A293912 * A124014 A100827 A034906

Adjacent sequences: A122620 A122621 A122622 * A122624 A122625 A122626

Keyword

nonn,base

Author

N. J. A. Sloane, Sep 21 2006

Status

approved