Numbers (excluding primes and powers of primes) such that the root mean cube of their prime factors is a prime (where the root mean cube of c and d is ((c^3+d^3)/2)^(1/3)).
A134615
Numbers (excluding primes and powers of primes) such that the root mean cube of their prime factors is a prime (where the root mean cube of c and d is ((c^3+d^3)/2)^(1/3)).
Terms
- a(0) =707265a(1) =1922816a(2) =2284389a(3) =12023505a(4) =14689836a(5) =21150800a(6) =29444140a(7) =30682000a(8) =36533504a(9) =39372480a(10) =46309837a(11) =52163097a(12) =67303740a(13) =73558065a(14) =85751055a(15) =107366283a(16) =115291904a(17) =161976045a(18) =190384425a(19) =204399585a(20) =218317275a(21) =231443940a(22) =274960400a(23) =286618640
External references
- oeis: A134615