Ceiling of Gamma(n+5/12)/Gamma(5/12).

Terms

a(0) =1a(1) =1a(2) =1a(3) =2a(4) =5a(5) =22a(6) =117a(7) =749a(8) =5550a(9) =46705a(10) =439803a(11) =4581281a(12) =52302950a(13) =649428294a(14) =8713162940a(15) =125614765717