Row sums of triangle A061312.

Terms

a(0) =0a(1) =2a(2) =9a(3) =52a(4) =335a(5) =2466a(6) =20447a(7) =189064a(8) =1930959a(9) =21603430a(10) =262869959a(11) =3457226268a(12) =48880169351a(13) =739429561066