Primes p of the form 4m^2+1 such that q=4p^2+1 and r=4q^2+1 are prime.
A248887
Primes p of the form 4m^2+1 such that q=4p^2+1 and r=4q^2+1 are prime.
Terms
- a(0) =677a(1) =6635777a(2) =28132417a(3) =156400037a(4) =234518597a(5) =381655297a(6) =386751557a(7) =403849217a(8) =820020497a(9) =1215498497a(10) =1298449157a(11) =1539463697a(12) =1580539537a(13) =1839037457a(14) =2072616677a(15) =2774550277a(16) =2969814017a(17) =6147500837a(18) =6194319617a(19) =6703351877a(20) =6937890437
External references
- oeis: A248887