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A122623
{2^n}_{2^n}.
0
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.
CROSSREFS
Sequence in context: A002075 A337720 A293912 * A124014 A100827 A034906
KEYWORD
nonn,base
AUTHOR
N. J. A. Sloane, Sep 21 2006
STATUS
approved