Row sums of triangle A118045; also equals a bisection of A118037, which is the antidiagonal sums of triangle A118032.

A118049

Row sums of triangle A118045; also equals a bisection of A118037, which is the antidiagonal sums of triangle A118032.

Terms

    a(0) =1a(1) =5a(2) =20a(3) =73a(4) =245a(5) =770a(6) =2319a(7) =6666a(8) =18574a(9) =49909a(10) =131011a(11) =334703a(12) =839703a(13) =2061763a(14) =4984321a(15) =11838917a(16) =27743676a(17) =64017152a(18) =145870081a(19) =327993788a(20) =729271170a(21) =1601769539a(22) =3480548548a(23) =7482752383a(24) =15933936346a(25) =33593546659a(26) =70181698046

External references