a(n) = A048250(n) * A345001(n).

Terms

a(0) =-1a(1) =0a(2) =-4a(3) =9a(4) =-18a(5) =60a(6) =-40a(7) =33a(8) =4a(9) =90a(10) =-108a(11) =240a(12) =-154a(13) =120a(14) =48a(15) =93a(16) =-270a(17) =288a(18) =-340a(19) =468a(20) =0a(21) =180a(22) =-504a(23) =672a(24) =-54a(25) =210a(26) =52a(27) =768a(28) =-810a(29) =3096