Row sums of A375085.

Terms

a(0) =0a(1) =1a(2) =3a(3) =8a(4) =24a(5) =78a(6) =268a(7) =956a(8) =3496a(9) =12998a(10) =48876a(11) =185268a(12) =706456a(13) =2706204a(14) =10404696a(15) =40124792a(16) =155133904a(17) =601113158a(18) =2333671756a(19) =9075266372a(20) =35345525944a(21) =137847053108a(22) =538258923016