First of four consecutive primes p,q,r,s such that 2*p+q+r+s, p+2*q+r+s, p+q+2*r+s and p+q+r+2*s are all prime.

A349586

First of four consecutive primes p,q,r,s such that 2*p+q+r+s, p+2*q+r+s, p+q+2*r+s and p+q+r+2*s are all prime.

Terms

    a(0) =659a(1) =2351a(2) =3967a(3) =8429a(4) =15091a(5) =23599a(6) =25127a(7) =32789a(8) =34471a(9) =35171a(10) =60859a(11) =64969a(12) =75941a(13) =78367a(14) =95111a(15) =97649a(16) =115183a(17) =139891a(18) =155773a(19) =158803a(20) =161059a(21) =186023a(22) =191707a(23) =208933a(24) =224443a(25) =225949a(26) =235813a(27) =333341a(28) =335693a(29) =391789

External references