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A121340 List of triples {1^(2^k), 2^(2^k), 3^(2^k)} for k>0. 0
1, 2, 3, 1, 4, 9, 1, 16, 81, 1, 256, 6561, 1, 65536, 43046721, 1, 4294967296, 1853020188851841, 1, 18446744073709551616, 3433683820292512484657849089281, 1, 340282366920938463463374607431768211456, 11790184577738583171520872861412518665678211592275841109096961 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..24.

MATHEMATICA

NestList[{#[[ -3]]^2, #[[ -2]]^2, #[[ -1]]^2} &, {1, 2, 3}, 7] // Flatten (* Robert G. Wilson v, Sep 02 2006 *)

Flatten[Table[{1, 2, 3}^2^k, {k, 0, 8}]] (* Harvey P. Dale, May 24 2012 *)

CROSSREFS

Cf. A000012, A001146, A011764.

Sequence in context: A075297 A057597 A226392 * A231206 A165241 A119865

Adjacent sequences:  A121337 A121338 A121339 * A121341 A121342 A121343

KEYWORD

nonn

AUTHOR

Marius Solend (mariussolend(AT)hotmail.com), Aug 29 2006

EXTENSIONS

More terms from Robert G. Wilson v, Sep 02 2006

STATUS

approved

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Last modified March 29 17:23 EDT 2020. Contains 333116 sequences. (Running on oeis4.)