First differences of A140298.

Terms

a(0) =1a(1) =0a(2) =0a(3) =1a(4) =1a(5) =1a(6) =1a(7) =4a(8) =4a(9) =1a(10) =13a(11) =13a(12) =1a(13) =40a(14) =40a(15) =1a(16) =121a(17) =121a(18) =1a(19) =364a(20) =364a(21) =1a(22) =1093a(23) =1093a(24) =1a(25) =3280a(26) =3280a(27) =1a(28) =9841a(29) =9841