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 A061274 Number of primes between Pi^(n-1) and Pi^n. 2
 2, 2, 7, 14, 37, 100, 271, 742, 2054, 5813, 16507, 47501, 137306, 399685, 1169789, 3438915, 10153559, 30083443, 89426830, 266598341, 796863253, 2387439540, 7168302094, 21565117858, 64993345011, 196202749033, 593205591259 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS Table of n, a(n) for n=1..27. EXAMPLE a(1) = 2 as 2 and 3 are the two primes between 1 and Pi. a(4) = 14 as there are 14 primes between (pi)^3 =31.006... and (pi)^4 =97.409091... MAPLE See A061273. MATHEMATICA p = q = 0; Do[m = n; q = PrimePi[Pi^n]; Print[q - p]; p = q, {n, 1, 28}] Differences[PrimePi[Pi^Range[0, 27]]] (* Harvey P. Dale, Aug 17 2016 *) CROSSREFS Cf. A061273, A071973. Sequence in context: A298959 A162460 A187306 * A061575 A306009 A290646 Adjacent sequences: A061271 A061272 A061273 * A061275 A061276 A061277 KEYWORD nonn AUTHOR Amarnath Murthy, Apr 25 2001 EXTENSIONS More terms from Winston C. Yang (winston(AT)cs.wisc.edu), May 17 2001 Edited and extended by Robert G. Wilson v, Jun 18 2002 STATUS approved

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Last modified March 5 03:04 EST 2024. Contains 370537 sequences. (Running on oeis4.)