Delannoy paths counted by number of weak peaks.

Terms

a(0) =1a(1) =1a(2) =2a(3) =1a(4) =8a(5) =4a(6) =1a(7) =18a(8) =36a(9) =8a(10) =1a(11) =32a(12) =144a(13) =128a(14) =16a(15) =1a(16) =50a(17) =400a(18) =800a(19) =400a(20) =32a(21) =1a(22) =72a(23) =900a(24) =3200a(25) =3600a(26) =1152a(27) =64a(28) =1a(29) =98