Row sums of triangle A203484.

Terms

a(0) =1a(1) =2a(2) =44a(3) =12a(4) =2316a(5) =56a(6) =86756a(7) =7548a(8) =2745504a(9) =14216a(10) =8303228a(11) =27440a(12) =26755926552a(13) =17777912a(14) =337554780656a(15) =166149231952a(17) =10165065032a(19) =559223251080