This site is supported by donations to The OEIS Foundation.

 Please make a donation to keep the OEIS running. We are now in our 55th year. In the past year we added 12000 new sequences and reached 8000 citations (which often say "discovered thanks to the OEIS"). We need to raise money to hire someone to manage submissions, which would reduce the load on our editors and speed up editing. Other ways to donate

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A173501 a(1)=2, a(2)=3, and for n >= 3, a(n) = 6^(2^(n-3)) = Product_{i=1..n-1} a(i). 4
 2, 3, 6, 36, 1296, 1679616, 2821109907456, 7958661109946400884391936, 63340286662973277706162286946811886609896461828096, 4011991914547630480065053387702443812690402487741812225955731622655455723258857248542161222254985216 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Except for first three terms, a(n) = (a(n-1))^2. Essentially the same as A165424. [R. J. Mathar, Feb 21 2010] LINKS CROSSREFS Sequence in context: A129379 A000308 A299399 * A018340 A299121 A184716 Adjacent sequences:  A173498 A173499 A173500 * A173502 A173503 A173504 KEYWORD nonn AUTHOR Giovanni Teofilatto, Feb 20 2010 EXTENSIONS Definition corrected by Glenn Tesler, Aug 19 2017 STATUS approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified December 5 17:42 EST 2019. Contains 329768 sequences. (Running on oeis4.)