A057841 a(n) = 2^A057838(n) corresponding to extremal cases of A055079.

4, 8, 2048, 34359738368, 2361183241434822606848, 3138550867693340381917894711603833208051177722232017256448

Offset

1,1

Links

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

Formula

a(n) = 2^A057838(n) = A055079(A057838(n)).

Example

a(7) = 2^419 which has 127 decimal digits.
a(35) = 2^15239 which has 4588 decimal digits.

Crossrefs

Cf. A000005, A001221, A001222, A055079, A058060, A058061, A057838.

Sequence in context: A013445 A201386 A009511 * A069883 A069647 A011348

Adjacent sequences: A057838 A057839 A057840 * A057842 A057843 A057844

Keyword

nonn

Author

Labos Elemer, Nov 24 2000

Extensions

Edited by Ray Chandler, Aug 14 2010

Status

approved