Row sums of A291929.

Terms

a(0) =1a(1) =1a(2) =2a(3) =5a(4) =11a(5) =26a(6) =60a(7) =139a(8) =321a(9) =743a(10) =1716a(11) =3965a(12) =9158a(13) =21152a(14) =48848a(15) =112808a(16) =260500a(17) =601553a(18) =1389096a(19) =3207660a(20) =7406989a(21) =17103860a(22) =39495306a(23) =91200333a(24) =210594475a(25) =486292240a(26) =1122916743a(27) =2592971247a(28) =5987531168a(29) =13826041086