Positive integers k such that all the distinct primes that divide k or k+1 are members of a set of consecutive primes. In other words, k is included if and only if k*(k+1) is contained in sequence A073491.
A141399
Positive integers k such that all the distinct primes that divide k or k+1 are members of a set of consecutive primes. In other words, k is included if and only if k*(k+1) is contained in sequence A073491.
Terms
- a(0) =1a(1) =2a(2) =3a(3) =5a(4) =8a(5) =9a(6) =14a(7) =15a(8) =20a(9) =24a(10) =35a(11) =80a(12) =125a(13) =224a(14) =384a(15) =440a(16) =539a(17) =714a(18) =1715a(19) =2079a(20) =2400a(21) =3024a(22) =4374a(23) =9800a(24) =12375a(25) =123200a(26) =194480a(27) =633555
External references
- oeis: A141399