a(n)=x is the least number such that x^2 is "surrounded" by two closest primes, prevprime(x^2) and nextprime(x^2), whose difference nextprime - prevprime = 2n.
A090116
a(n)=x is the least number such that x^2 is "surrounded" by two closest primes, prevprime(x^2) and nextprime(x^2), whose difference nextprime - prevprime = 2n.
Terms
- a(0) =2a(1) =3a(2) =5a(3) =19a(4) =12a(5) =25a(6) =11a(7) =44a(8) =23a(9) =30a(10) =57a(11) =41a(12) =50a(13) =102a(14) =76a(15) =104a(16) =100a(17) =149a(18) =175a(19) =159a(20) =348a(21) =276a(22) =305a(23) =397a(24) =461a(25) =189a(26) =345a(27) =1059a(28) =437a(29) =820
External references
- oeis: A090116