4th binomial transform of (1,0,1,0,1,...), A059841.

Terms

a(0) =1a(1) =4a(2) =17a(3) =76a(4) =353a(5) =1684a(6) =8177a(7) =40156a(8) =198593a(9) =986404a(10) =4912337a(11) =24502636a(12) =122336033a(13) =611148724a(14) =3054149297a(15) =15265963516a(16) =76315468673a(17) =381534296644