A086220 Numbers n such that p=n^2+2, p+2, p+6 and p+8 are four consecutive primes.
3, 57, 32397, 54813, 61827, 62493, 98487, 98853, 119937, 213237, 254577, 306123, 322263, 328803, 438453, 603603, 619263, 656733, 671013, 675807, 821247, 875277, 1051173, 1121133, 1163697, 1230783, 1234317, 1337763, 1382223, 1388103, 1455927, 1538517, 1581237
Offset: 1
Links
- Andrew Howroyd, Table of n, a(n) for n = 1..1000
Programs
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PARI
is(n)={my(p=n^2+2); isprime(p) && isprime(p+2) && isprime(p+6) && isprime(p+8)} \\ Andrew Howroyd, Jan 05 2020
Extensions
Terms a(15) and beyond from Andrew Howroyd, Jan 05 2020