This site is supported by donations to The OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A115985 Positive n which are not the average of a run of at least 2 consecutive primes. 1
 1, 2, 3, 7, 8, 10, 11, 13, 14, 16, 19, 20, 24, 25, 27, 28, 32, 33, 35, 36, 40, 41, 44, 48, 54, 57, 58, 59, 61, 62, 63, 65, 66, 67, 73, 74, 75, 80, 83, 84, 85, 88, 90, 94, 98, 103, 104, 109, 118, 119, 121, 128, 131, 136, 140, 141, 142, 146, 147, 148, 152, 156, 158 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 LINKS EXAMPLE 4=(3+5)/2, so 4 does not belong. MATHEMATICA With[{nn=400}, Select[Complement[Range[nn], Union[Flatten[ Table[ Select[Mean/@Partition[Prime[Range[PrimePi[nn]]], n, 1], IntegerQ], {n, 2, PrimePi[nn]}]]]], #

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
Recent Additions | More pages | Superseeker | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement .

Last modified May 21 06:21 EDT 2013. Contains 225475 sequences.