1,2

Next term is too large to include.

The next term has 217864 digits. - Harvey P. Dale, Jun 28 2021

Table of n, a(n) for n=1..4.

FoldList[#2 + #1^#1 &, 1, {1, 2, 6}] (* G. C. Greubel, Oct 12 2016 *)

NestList[#+#^#&, 1, 4] (* Harvey P. Dale, Jun 28 2021 *)

Sequence in context: A005607 A184391 A161563 * A165710 A151995 A152210

Adjacent sequences: A135405 A135406 A135407 * A135409 A135410 A135411

nonn

Leroy Quet, Dec 10 2007

approved