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A028369 a(n) = 2^(2^(n-1) + n - 2). 3
1, 4, 32, 1024, 524288, 68719476736, 590295810358705651712, 21778071482940061661655974875633165533184, 14821387422376473014217086081112052205218558037201992197050570753012880593911808 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
LINKS
FORMULA
a(n) = 2^A052944(n-1). - R. J. Mathar, Dec 15 2015
MATHEMATICA
Table[2^(2^(n-1)+n-2), {n, 10}] (* Harvey P. Dale, Aug 20 2019 *)
PROG
(Magma) [2^(n-1)*2^(2^(n-1)-1): n in [1..10]]; // Vincenzo Librandi, Jun 03 2011
(PARI) a(n)=1<<(2^(n-1)+n-2) \\ Charles R Greathouse IV, Jun 05 2011
CROSSREFS
Sequence in context: A370544 A298896 A231991 * A081790 A053005 A257583
KEYWORD
nonn,easy
AUTHOR
EXTENSIONS
One more term (a(9)) from Harvey P. Dale, Aug 20 2019
STATUS
approved

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Last modified March 29 09:59 EDT 2024. Contains 371268 sequences. (Running on oeis4.)