Composite squarefree integers for which the sum of the squares of their factors is a square.

Terms

a(0) =2145a(1) =2730a(2) =4305a(3) =6545a(4) =9030a(5) =10545a(6) =11935a(7) =13398a(8) =13585a(9) =19695a(10) =20202a(11) =20559a(12) =20735a(13) =21318a(14) =23345a(15) =25530a(16) =25665a(17) =26070a(18) =27030a(19) =27265a(20) =28842a(21) =30849a(22) =34255a(23) =35105a(24) =37345a(25) =38335a(26) =40170a(27) =42159a(28) =45105a(29) =47215