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A266199 a(n) = H_5(3,n) where H_n is the n-th hyperoperator. 3

%I

%S 0,1,3,7625597484987

%N a(n) = H_5(3,n) where H_n is the n-th hyperoperator.

%C See A054871 for definitions and key links.

%e a(-1)= H_5(3,-1)= 0;

%e a(0) = H_5(3,0) = 1;

%e a(1) = H_5(3,1) = 3;

%e a(2) = H_5(3,2) = H_4(3, H_4(3,1)) = H_4(3,3) = 3^3^3 = 7625597484987;

%t NestList[3^#^3 &, 0, 3] (* _Vincenzo Librandi_, Jan 18 2016 *)

%Y Cf. A014222 (H_4(3,n)), A054871, A266198 (H_5(2,n)).

%K nonn

%O -1,3

%A _Natan Arie' Consigli_, Jan 12 2016

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Last modified October 16 01:13 EDT 2019. Contains 328038 sequences. (Running on oeis4.)