Row sums of triangle A114172, where the g.f. of column n equals the g.f. of row n divided by (1-x)^(n+1).

A114173

Row sums of triangle A114172, where the g.f. of column n equals the g.f. of row n divided by (1-x)^(n+1).

Terms

    a(0) =1a(1) =2a(2) =5a(3) =13a(4) =34a(5) =90a(6) =240a(7) =643a(8) =1729a(9) =4663a(10) =12607a(11) =34156a(12) =92702a(13) =251975a(14) =685759a(15) =1868310a(16) =5094753a(17) =13904028a(18) =37971570a(19) =103762963a(20) =283703065a(21) =776069296a(22) =2123892683a(23) =5814922585a(24) =15926507984a(25) =43636524179a(26) =119597410199

External references