First row of spectral array W(Pi/2).

Terms

a(0) =1a(1) =2a(2) =3a(3) =5a(4) =7a(5) =13a(6) =20a(7) =35a(8) =54a(9) =96a(10) =150a(11) =264a(12) =414a(13) =726a(14) =1140a(15) =1997a(16) =3136a(17) =5495a(18) =8631a(19) =15121a(20) =23752a(21) =41612a(22) =65363a(23) =114513a(24) =179876a(25) =315132a(26) =495008a(27) =867223a(28) =1362230a(29) =2386544