A219996 Centuries whose prime pattern is the same as prime pattern in the previous century.

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

Offset: 1

Author

V. Raman, Dec 08 2012

Keywords

• nonn
• base

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.

Crossrefs

Cf. A181098.

Cf. A190639 (lower century).

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.