Let P1>3, P2, P3, P4 be 4 consecutive primes with P3-P2 = 2. a(n) = P2 is the earliest occurrence of the 4-tuple with min(P2-P1, P4-P3) = 2*n, or 0 if no such constellation exists.
A347280
Let P1>3, P2, P3, P4 be 4 consecutive primes with P3-P2 = 2. a(n) = P2 is the earliest occurrence of the 4-tuple with min(P2-P1, P4-P3) = 2*n, or 0 if no such constellation exists.
Terms
- a(0) =11a(1) =29a(2) =0a(3) =419a(4) =521a(5) =0a(6) =1931a(7) =6449a(8) =0a(9) =10037a(10) =43541a(11) =0a(12) =10007a(13) =28349a(14) =0a(15) =107507a(16) =280409a(17) =0a(18) =261167a(19) =173429a(20) =0a(21) =569321a(22) =913637a(23) =0a(24) =1598447a(25) =1789091a(26) =0a(27) =1349531a(28) =5317451a(29) =0
External references
- oeis: A347280