Path-counting array T(i,j) obtained from array t in A038792 by T(i,j)=t(2i+1,j).

Terms

a(0) =1a(1) =1a(2) =3a(3) =1a(4) =5a(5) =8a(6) =1a(7) =7a(8) =17a(9) =21a(10) =1a(11) =9a(12) =30a(13) =50a(14) =55a(15) =1a(16) =11a(17) =47a(18) =103a(19) =138a(20) =144a(21) =1a(22) =13a(23) =68a(24) =188a(25) =314a(26) =370a(27) =377a(28) =1a(29) =15