Row sums of A291843.

Terms

a(0) =1a(1) =0a(2) =1a(3) =8a(4) =71a(5) =789a(6) =10365a(7) =157031a(8) =2692497a(9) =51519756a(10) =1088093185a(11) =25140587651a(12) =630820490833