A114484 Number of decimal digits in Fermat(10^n).

1, 309, 381600854690147056244358827361

Offset

0,2

Comments

Next term a(3) has 301 digits.

Links

Amiram Eldar, Table of n, a(n) for n = 0..3

Eric Weisstein's World of Mathematics, Fermat Number.

Formula

a(n) = A057755(10^n) = A055642(A000215(A011557(n))). - Amiram Eldar, Jul 17 2025

Mathematica

Block[{$MaxExtraPrecision = Infinity}, Table[1 + Floor[2^10^n Log[10, 2]], {n, 0, 2}]]

Crossrefs

Subsequence of A057755. - Arkadiusz Wesolowski, Jun 30 2011

Cf. A000021, A000215, A011557, A055642.

Sequence in context: A251345 A105841 A127456 * A014369 A273593 A051981

Adjacent sequences: A114481 A114482 A114483 * A114485 A114486 A114487

Keyword

nonn,base

Author

Eric W. Weisstein, Nov 30 2005

Status

approved