a(n) is the smallest even number m such that the set {m+1, m+3, m+5, ..., m+(2*n-1)} contains no prime numbers.

A383969

a(n) is the smallest even number m such that the set {m+1, m+3, m+5, ..., m+(2*n-1)} contains no prime numbers.

Terms

    a(0) =0a(1) =24a(2) =90a(3) =114a(4) =114a(5) =114a(6) =524a(7) =524a(8) =888a(9) =1130a(10) =1328a(11) =1328a(12) =1328a(13) =1328a(14) =1328a(15) =1328a(16) =9552a(17) =15684a(18) =15684a(19) =15684a(20) =15684a(21) =19610a(22) =19610a(23) =19610a(24) =19610a(25) =31398a(26) =31398a(27) =31398a(28) =31398a(29) =31398

External references