A004217 (n^n)^(n^n)

1, 256, 443426488243037769948249630619149892803

Offset

1,2

Comments

The next four terms have 617, 10922, 217833 and 4871823 digits respectively. - Rick L. Shepherd, May 07 2006

Links

Table of n, a(n) for n=1..3.

Formula

a(n) = A000312(A000312(n)) = n^A007778(n) = A002488(n)^n = A002489(n)^A000169(n)

Crossrefs

Sequence in context: A018859 A180699 A195529 * A351309 A051333 A273775

Adjacent sequences: A004214 A004215 A004216 * A004218 A004219 A004220

Keyword

nonn,easy,bref

Author

Henry Bottomley, Jun 08 2000

Status

approved