a(n) = A121296(n) - A121263(n).

Terms

a(0) =0a(1) =0a(2) =0a(3) =0a(4) =0a(5) =3a(6) =14a(7) =35a(8) =87a(9) =293a(10) =4878a(11) =22692a(12) =537091a(13) =11662046a(14) =46524257309