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A055777 3^(3^n). 5

%I

%S 3,27,19683,7625597484987,443426488243037769948249630619149892803

%N 3^(3^n).

%C a(n+1) = a(n) written in base 3 and read as if in base 27 (and recorded in base 10).

%C Number of distinct n-ary operators in a ternary logic. - _Ross Drewe_, Feb 13 2008

%C The next term has 116 digits. - _Harvey P. Dale_, Mar 28 2019

%F a(n) =a(n-1)^3.

%t NestList[#^3&,3,5] (* _Harvey P. Dale_, Mar 28 2019 *)

%Y Cf. A001146, A023365.

%K nonn

%O 0,1

%A _Henry Bottomley_, Jul 12 2000

%E Next term is too big to include.

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Last modified September 22 12:42 EDT 2019. Contains 327307 sequences. (Running on oeis4.)