Getachew, Frether
(Addis Ababa University, 2013-02)
This work deals with Central Delannoy numbers, enumerated as Dn;n = (Dn)n_0
= 1, 3, 13, 63, 321, 1683, 8989, 48639, . . ., which counts the number of lattice
paths running from (0; 0) to (n; n) by using the steps (1; 0), ...