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A095335 Number of A095315-primes in range ]2^n,2^(n+1)]. 3
1, 1, 2, 2, 4, 8, 19, 22, 43, 68, 159, 235, 537, 844, 1914, 2849, 6378, 10138, 23145, 37023, 82295, 134477, 303833, 494625, 1098521, 1829183, 4075501, 6789809, 15062515, 25412867, 56401388, 95440507, 210680037 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

COMMENTS

Ratios a(n)/A036378(n) converge as: 1, 0.5, 1, 0.4, 0.571429, 0.615385, 0.826087, 0.511628, 0.573333, 0.49635, 0.623529, 0.506466, 0.615826, 0.523573, 0.631683, 0.499037, 0.593358, 0.497205, 0.599068, 0.503126, 0.586414, 0.501376, 0.591451, 0.501741, 0.579964, 0.501731, 0.579953, 0.500653, 0.574745, 0.501264, 0.574454, 0.501433, 0.570449

Ratios a(n)/A095296(n) converge as: 1, 1, 1, 0.666667, 0.8,1.6, 1.1875, 1.047619, 0.895833, 0.985507, 0.908571, 1.026201,1.015123, 1.098958, 1.034595, 0.996154, 1.016252, 0.98888, 0.99557,1.012581, 1.008245, 1.005518, 1.011728, 1.006987, 1.006148, 1.006948,1.00328, 1.002615, 1.002721, 1.00507, 1.004757, 1.005748, 1.003766

LINKS

Table of n, a(n) for n=1..33.

A. Karttunen and J. Moyer: C-program for computing the initial terms of this sequence

Index entries for sequences related to occurrences of various subsets of primes in range ]2^n,2^(n+1)]

CROSSREFS

a(n) = A036378(n)-A095334(n).

Sequence in context: A167022 A168055 A005702 * A283117 A100396 A056630

Adjacent sequences:  A095332 A095333 A095334 * A095336 A095337 A095338

KEYWORD

nonn

AUTHOR

Antti Karttunen, Jun 04 2004

STATUS

approved

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Last modified February 22 15:12 EST 2018. Contains 299454 sequences. (Running on oeis4.)