Integers k such that there exists an integer 0<m<k such that sigma(m)^2 + sigma(k)^2 = 2*(m+k)^2.

Terms

a(0) =4a(1) =284a(2) =1210a(3) =2924a(4) =4892a(5) =5564a(6) =6368a(7) =9962a(8) =10425a(9) =10856a(10) =13130a(11) =14595a(12) =18416a(13) =28130a(14) =29631a(15) =35584a(16) =53296a(17) =53912a(18) =64617a(19) =66992a(20) =67268a(21) =71145a(22) =76084a(23) =86812a(24) =87633a(25) =88730a(26) =100695a(27) =102364a(28) =104805a(29) =122390