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 A219996 Centuries whose prime pattern is the same as prime pattern in the previous century. 3
 473268, 726761, 1773440, 1808829, 1919129, 2131584, 2165421, 2339972, 2390653, 2518489, 2802592, 2844915, 2982585, 2996185, 3183264, 3193176, 3250987, 3418186, 3428242, 3633473, 3909325, 3953450, 4280456, 4303820, 4373400, 4658286, 4728654, 4978361, 5165403, 5254366 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS x belongs to this sequence if and only if the primality character of (100 * (x-1)) + k is the same as (100 * x) + k for all k = 0..99. LINKS Table of n, a(n) for n=1..30. FORMULA a(n) ~ n. In particular there are x - 200x/log x + O(x/log^2 x) members of this sequence below x. - Charles R Greathouse IV, Dec 09 2012 a(n) = A190639(n) + 1. CROSSREFS Cf. A181098. Cf. A190639 (lower century). Sequence in context: A251370 A190639 A228271 * A183659 A213994 A201226 Adjacent sequences: A219993 A219994 A219995 * A219997 A219998 A219999 KEYWORD nonn,base AUTHOR V. Raman, Dec 08 2012 STATUS approved

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Last modified February 25 16:57 EST 2024. Contains 370332 sequences. (Running on oeis4.)