Template:Sequence of the Day for July 9

Intended for: July 9, 2012

Timetable

• First draft entered by Alonso del Arte on March 12, 2011 based on an almost verbatim copy of a write-up by Charles Greathouse from January 20, 2011. ✓
• Draft reviewed by Daniel Forgues on May 5, 2011 ✓
• Draft approved by Alonso del Arte on July 7, 2011 ✓

Yesterday's SOTD * Tomorrow's SOTD

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A156695: Odd numbers which are not of the form

p + 2 a + 2 b

, with

a   ≥   b   >   0

, and

p

prime.

{ 1, 3, 5, 6495105, 848629545, 1117175145, 2544265305, 3147056235, 3366991695, ... }

Can you find a member (  >   5) which is not divisible by 255? There should be infinitely many, but none have been found!