Antidiagonal sums of A383414.

Terms

a(0) =7a(1) =43a(2) =195a(3) =811a(4) =3283a(5) =13179a(6) =52771a(7) =211147a(8) =844659a(9) =3378715a(10) =13514947a(11) =54059883a(12) =216239635a(13) =864958651a(14) =3459834723a(15) =13839339019a(16) =55357356211a(17) =221429424987a(18) =885717700099