Denominator of harmonic mean of 3 consecutive primes. Numerators are A331259.

Terms

a(0) =31a(1) =71a(2) =167a(3) =311a(4) =551a(5) =791a(6) =1151a(7) =1655a(8) =2279a(9) =3119a(10) =3935a(11) =4871a(12) =5711a(13) =6791a(14) =2797a(15) =9959a(16) =11639a(17) =13175a(18) =14831a(19) =16559a(20) =18383a(21) =20975a(22) =24071a(23) =27419a(24) =30191a(25) =32231a(26) =33911a(27) =36071a(28) =40511a(29) =45791