a(n) = least prime p such that there are n consecutive even numbers E < 2 sqrt(p) such that E^2-p is prime.
A157185
a(n) = least prime p such that there are n consecutive even numbers E < 2 sqrt(p) such that E^2-p is prime.
Terms
- a(0) =2a(1) =13a(2) =41a(3) =83a(4) =83a(5) =167a(6) =227a(7) =227a(8) =2273a(9) =2273a(10) =2273a(11) =5297a(12) =340007a(13) =837077a(14) =837077a(15) =837077a(16) =837077a(17) =837077a(18) =2004917a(19) =2004917a(20) =2004917a(21) =208305767a(22) =208305767
External references
- oeis: A157185