Smallest k such that q=2*k*prime(n)^4+b , r=2*k*q^4+c , s=2*k*r^4+d and q, r and s are all prime numbers with b, c and d = -1 or 1.

A225056

Smallest k such that q=2*k*prime(n)^4+b , r=2*k*q^4+c , s=2*k*r^4+d and q, r and s are all prime numbers with b, c and d = -1 or 1.

Terms

    a(0) =3199a(1) =339a(2) =1267a(3) =258a(4) =696a(5) =209a(6) =5514a(7) =4043a(8) =1773a(9) =390a(10) =4188a(11) =21735a(12) =4449a(13) =426a(14) =19410a(15) =14681a(16) =159a(17) =23475a(18) =1074a(19) =36876a(20) =1449a(21) =349a(22) =6525a(23) =4725a(24) =3141a(25) =354a(26) =2799a(27) =16164a(28) =369a(29) =8751

External references