Nonprimes k such that sopfr(k) = rad(k), where sopfr(k) is sum of the prime factors of k (counting multiplicity), and rad(k) is the product of its distinct prime factors.
A386916
Nonprimes k such that sopfr(k) = rad(k), where sopfr(k) is sum of the prime factors of k (counting multiplicity), and rad(k) is the product of its distinct prime factors.
Terms
- a(0) =18750a(1) =22500a(2) =24000a(3) =27000a(4) =28800a(5) =30720a(6) =32400a(7) =34560a(8) =36450a(9) =38880a(10) =43740a(11) =201684a(12) =345744a(13) =388962a(14) =526848a(15) =592704a(16) =666792a(17) =903168a(18) =1016064a(19) =1143072a(20) =1285956a(21) =1376256a(22) =1548288a(23) =1741824a(24) =1959552a(25) =2204496a(26) =2480058a(27) =7730448a(28) =8696754a(29) =33732864
External references
- oeis: A386916