First differences of A014292.

Terms

a(0) =0a(1) =1a(2) =1a(3) =1a(4) =1a(5) =0a(6) =-2a(7) =-5a(8) =-9a(9) =-13a(10) =-15a(11) =-12a(12) =0a(13) =25a(14) =65a(15) =117a(16) =169a(17) =196a(18) =158a(19) =3a(20) =-321a(21) =-841a(22) =-1519a(23) =-2200a(24) =-2560a(25) =-2079a(26) =-79a(27) =4121a(28) =10881a(29) =19720