a(n) is the number of residues modulo (4*primorial(n)) of the squares of primes greater than or equal to prime(n+1).
A323739
a(n) is the number of residues modulo (4*primorial(n)) of the squares of primes greater than or equal to prime(n+1).
Terms
- a(0) =2a(1) =1a(2) =1a(3) =2a(4) =6a(5) =30a(6) =180a(7) =1440a(8) =12960a(9) =142560a(10) =1995840a(11) =29937600a(12) =538876800a(13) =10777536000a(14) =226328256000
External references
- oeis: A323739