A154501
Sum of any 3 consecutive numbers is prime and a(n+2)-(a(n+1)+a(n)) is prime, a(1)=3,a(2)=11.
Original entry on oeis.org
3, 11, 17, 31, 41, 59, 97, 113, 127, 139
Offset: 1
Cf.
A154484,
A154485,
A154486,
A154487,
A154488,
A154493,
A154494,
A154495,
A154496,
A062391,
A154497,
A154498,
A154500
-
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
A154502
Sum of any 3 consecutive numbers is prime and a(n+2)-(a(n+1)+a(n)) is prime, a(1)=3,a(2)=31.
Original entry on oeis.org
3, 31, 37, 71, 89, 157, 163
Offset: 1
Cf.
A154484,
A154485,
A154486,
A154487,
A154488,
A154493,
A154494,
A154495,
A154496,
A062391,
A154497,
A154498,
A154500,
A154501
-
a=3;b=31;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,9,9!}];lst
Showing 1-2 of 2 results.
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