A048514 a(n)=T(0,n)+T(1,n-1)+...+T(n,0), array T given by A048505.

1, 3, 13, 54, 190, 587, 1659, 4412, 11244, 27785, 67089, 159106, 371930, 859159, 1964855, 4454968, 10025240, 22411221, 49804909, 110097630, 242217766, 530575683, 1157623603, 2516577524, 5452589700, 11777599456