Numbers k for which sigma(k - x) + sigma(k + x) = 8*k has at least one nonnegative solution.

Terms

a(0) =14412a(1) =17640a(2) =25581a(3) =25623a(4) =25659a(5) =26208a(6) =30240a(7) =31110a(8) =31380a(9) =31500a(10) =32340a(11) =32736a(12) =32760a(13) =34958a(14) =35112a(15) =44211a(16) =44343a(17) =45048a(18) =45324a(19) =45444a(20) =46578a(21) =48090a(22) =49368a(23) =51674a(24) =52045a(25) =52290a(26) =53103a(27) =53127a(28) =53460a(29) =54000