First differences of A046163.

Terms

a(0) =6a(1) =6a(2) =-6a(3) =24a(4) =12a(5) =-24a(6) =54a(7) =18a(8) =-54a(9) =96a(10) =24a(11) =-96a(12) =150a(13) =30a(14) =-150a(15) =216a(16) =36a(17) =-216a(18) =294a(19) =42a(20) =-294a(21) =384a(22) =48a(23) =-384a(24) =486a(25) =54a(26) =-486a(27) =600a(28) =60a(29) =-600