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 A225548 Numbers of the form prime(i)^2^(i-1) or prime(i)^2^(j-1)*prime(j)^2^(i-1) with i and j distinct integers. 2
 2, 9, 12, 80, 625, 1792, 2025, 321489, 720896, 5764801, 937890625, 5208653241, 55834574848, 2234039306640625, 45949729863572161, 313160411915961129, 313594649253062377472, 7123773809250362976481, 664987601339817047119140625, 992334624064536108066118386802209 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS These numbers are the "basic" fixed points of A225546. LINKS Paul Tek, Table of n, a(n) for n = 1..60 EXAMPLE 5764801 = 7^8 = prime(4)^2^(4-1); hence 5764801 is in the sequence. 2234039306640625 = 5^16*11^4 = prime(3)^2^(5-1)*prime(5)^2^(3-1); hence 2234039306640625 is in the sequence. CROSSREFS Cf. A000040, A000079, A225547. Sequence in context: A216350 A125019 A259984 * A233400 A234945 A357729 Adjacent sequences: A225545 A225546 A225547 * A225549 A225550 A225551 KEYWORD nonn AUTHOR Paul Tek, May 10 2013 STATUS approved

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Last modified April 18 10:28 EDT 2024. Contains 371779 sequences. (Running on oeis4.)