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A266198 a(n) = H_5(2,n) where H_n is the n-th hyperoperator. 3
0, 1, 2, 4, 65536 (list; graph; refs; listen; history; text; internal format)
OFFSET
-1,3
COMMENTS
See A054871 for definitions and key links.
LINKS
EXAMPLE
a(-1)= H_5(2,-1)= 0;
a(0) = H_5(2,0) = 1;
a(1) = H_5(2,1) = 2;
a(2) = H_5(2,2) = H_4(2, H_4(2,1)) = H_4(2,2) = 2^2 = 4;
a(3) = H_5(2,3) = H_4(2, H_4(2,2)) = H_4(2,4) = 2^2^2^2 = 65536;
PROG
(Magma) [0] cat [n eq 1 select 1 else 2^Self(n-1)^(n-2): n in [1..4]]; // Vincenzo Librandi, Jan 18 2016
CROSSREFS
Cf. A006263, A054871, A014221 (H_4(2,n)), A266199 (H_5(3,n)).
Sequence in context: A048829 A070655 A006263 * A274990 A079236 A138852
KEYWORD
nonn
AUTHOR
Natan Arie Consigli, Jan 12 2016
STATUS
approved

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Last modified February 21 07:44 EST 2024. Contains 370219 sequences. (Running on oeis4.)