Row sums of triangle A134349.

Terms

a(0) =1a(1) =7a(2) =23a(3) =67a(4) =191a(5) =547a(6) =1583a(7) =4627a(8) =13631a(9) =40387a(10) =120143a(11) =358387a(12) =1071071a(13) =3205027a(14) =9598703a(15) =28763347a(16) =86224511a(17) =258542467a(18) =775365263a(19) =2325571507a(20) =6975665951a(21) =20924900707a(22) =62770507823a(23) =188303134867a(24) =564892627391