Row sums of A321625.

Terms

a(0) =1a(1) =2a(2) =6a(3) =22a(4) =58a(5) =210a(6) =594a(7) =1994a(8) =5990a(9) =19222a(10) =59454a(11) =187310a(12) =585414a(13) =1834118a(14) =5747062a(15) =17988022a(16) =56373274a(17) =176475314a(18) =552911106a(19) =1731322458a(20) =5423249418a(21) =16984237522a(22) =53196773962a(23) =166608743122a(24) =521821551746