a(n) = A112260(n+1) - A112260(n).

Terms

a(0) =-2a(1) =0a(2) =12a(3) =20a(4) =-12a(5) =-60a(6) =52a(7) =420a(8) =468a(9) =-700a(10) =-1548a(11) =3300a(12) =13588a(13) =8580a(14) =-29388a(15) =-30940a(16) =152148a(17) =406980a(18) =60532a(19) =-1043100a(20) =-236652a(21) =6032900a(22) =11173812a(23) =-4569180a(24) =-32487212a(25) =19343940a(26) =216401652a(27) =273243620a(28) =-323927532a(29) =-880031100