|
Search: id:A154501
|
|
|
| A154501 |
|
Sum of any 3 consecutive numbers is prime and a(n+2)-(a(n+1)+a(n)) is prime, a(0)=3,a(1)=11. |
|
+0
2
|
| |
|
|
OFFSET
|
1,1
|
|
|
COMMENT
|
3+11+17=31;17-(3+11)=3,...
|
|
MATHEMATICA
|
a=3; b=11; lst={a, b}; Do[c=Prime[n]; p1=c+a+b; p2=c-(a+b); If[PrimeQ[p1]&&PrimeQ[p2], AppendTo[lst, c]; a=b; b=c], {n, 5, 9!}]; lst
|
|
CROSSREFS
|
Cf. A154484, A154485, A154486, A154487, A154488, A154493, A154494, A154495, A154496, A062391, A154497, A154498, A154500
Sequence in context: A154613 A109654 A038986 this_sequence A045432 A018520 A154933
Adjacent sequences: A154498 A154499 A154500 this_sequence A154502 A154503 A154504
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
Vladimir Orlovsky (4vladimir(AT)gmail.com), Jan 10 2009
|
|
|
Search completed in 0.002 seconds
|
