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 A101405 a(n) = n^(pi(n-1)). 1
 1, 1, 3, 16, 25, 216, 343, 4096, 6561, 10000, 14641, 248832, 371293, 7529536, 11390625, 16777216, 24137569, 612220032, 893871739, 25600000000, 37822859361, 54875873536, 78310985281, 2641807540224, 3814697265625, 5429503678976 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,3 COMMENTS pi(n) (A000720) is the number of prime numbers less than or equal to n. LINKS EXAMPLE a(5)=25 because a(5)= 5^(pi(4))= 5^2= 25 If n=10, m=4, so 10^4 = 10000. MATHEMATICA Table[n^PrimePi[n - 1], {n, 30}] CROSSREFS Cf. A000720. Sequence in context: A153723 A091273 A256931 * A193367 A322413 A298873 Adjacent sequences:  A101402 A101403 A101404 * A101406 A101407 A101408 KEYWORD nonn AUTHOR Parthasarathy Nambi, Jan 15 2005 EXTENSIONS Extended by Ray Chandler, Jan 18 2005 Edited by N. J. A. Sloane at the suggestion of Andrew S. Plewe, Jun 16 2007 STATUS approved

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Last modified January 27 21:52 EST 2020. Contains 331300 sequences. (Running on oeis4.)