Second differences of A038580.

Terms

a(0) =14a(1) =8a(2) =40a(3) =-16a(4) =46a(5) =-44a(6) =46a(7) =68a(8) =-58a(9) =100a(10) =-66a(11) =-54a(12) =54a(13) =82a(14) =38a(15) =-204a(16) =314a(17) =-214a(18) =-64a(19) =176a(20) =-20a(21) =6a(22) =120a(23) =-72a(24) =-158a(25) =34a(26) =-58a(27) =28a(28) =680a(29) =-590