a(n) is the smallest prime(m) such that the interval (prime(m)*n, prime(m+1)*n) contains exactly three primes.

A187810

a(n) is the smallest prime(m) such that the interval (prime(m)*n, prime(m+1)*n) contains exactly three primes.

Terms

    a(0) =31a(1) =7a(2) =3a(3) =3a(4) =3a(5) =3a(6) =2a(7) =17a(8) =17a(9) =2a(10) =17a(11) =2a(12) =107a(13) =59a(14) =71a(15) =107a(16) =101a(17) =179a(18) =197a(19) =431a(20) =179a(21) =521a(22) =431a(23) =431a(24) =809a(25) =179a(26) =599a(27) =641a(28) =809a(29) =2081

External references