Nearest integer to Gamma(n + 3/7)/Gamma(3/7).

Terms

a(0) =1a(1) =0a(2) =1a(3) =1a(4) =5a(5) =23a(6) =123a(7) =788a(8) =5853a(9) =49330a(10) =465113a(11) =4850460a(12) =55433829a(13) =688963306a(14) =9251792972a(15) =133490155744