Sum over all Motzkin paths of length n of products over all peaks p of x_p/y_p, where x_p and y_p are the coordinates of peak p.

A258312

Sum over all Motzkin paths of length n of products over all peaks p of x_p/y_p, where x_p and y_p are the coordinates of peak p.

Terms

    a(0) =1a(1) =1a(2) =2a(3) =5a(4) =14a(5) =43a(6) =141a(7) =490a(8) =1785a(9) =6789a(10) =26809a(11) =109632a(12) =462755a(13) =2012441a(14) =8997402a(15) =41297927a(16) =194306557a(17) =936082502a(18) =4612095475a(19) =23219012907a(20) =119328025012a(21) =625545408219

External references