a(n) = A000730(7*n).

Terms

a(0) =1a(1) =41a(2) =-176a(3) =98a(4) =322a(5) =-181a(6) =-140a(7) =-489a(8) =112a(9) =889a(10) =14a(11) =-560a(12) =125a(13) =154a(14) =756a(15) =-1317a(16) =-1778a(17) =1554a(18) =-1218a(19) =2688a(20) =1764a(21) =-980a(22) =71a(23) =-1575a(24) =14a(25) =-1638a(26) =-419a(27) =56a(28) =-1988a(29) =-2716