|
Search: id:A124661
|
|
|
| A124661 |
|
Primes which have only nonnegative amplitudes defined as ((Prime[k + n] + Prime[k - n])/2) - Prime[k] for k=3,4,5,..., n=1,2,..,k-3,k-2. |
|
+0
1
|
|
| 5, 7, 13, 19, 23, 31, 43, 47, 73, 83, 109, 113
(list; graph; listen)
|
|
|
OFFSET
|
1,1
|
|
|
EXAMPLE
|
31 belonging because all amplitudes are nonnegative {2, 1, 0, 1, 2, 4, 3, 5,
6} 29 don't belonging because some amplitudes are negative {-2, -1, 0, -1, 0, 1, 3, 3}
|
|
CROSSREFS
|
Sequence in context: A109269 A114275 A156107 this_sequence A084932 A038908 A163427
Adjacent sequences: A124658 A124659 A124660 this_sequence A124662 A124663 A124664
|
|
KEYWORD
|
nonn,uned
|
|
AUTHOR
|
Artur Jasinski (grafix(AT)csl.pl), Dec 23 2006
|
|
|
Search completed in 0.002 seconds
|
