Antidiagonal sums of the convolution array A213584.

Terms

a(0) =1a(1) =6a(2) =20a(3) =51a(4) =112a(5) =224a(6) =421a(7) =758a(8) =1324a(9) =2263a(10) =3808a(11) =6336a(12) =10457a(13) =17158a(14) =28036a(15) =45675a(16) =74256a(17) =120544a(18) =195485a(19) =316790a(20) =513116a(21) =830831a(22) =1344960a(23) =2176896a(24) =3523057a(25) =5701254a(26) =9225716a(27) =14928483a(28) =24155824a(29) =39086048