a(n) is the number of regions formed by n-secting the angles of a decagon.

Terms

a(0) =1a(1) =10a(2) =151a(3) =50a(4) =471a(5) =440a(6) =981a(7) =220a(8) =1561a(9) =1550a(10) =2371a(11) =1750a(12) =3361a(13) =3320a(14) =4591a(15) =2440a(16) =5781a(17) =5720a(18) =7221a(19) =6190a(20) =8901a(21) =8830a(22) =10821a(23) =6620a(24) =12591a(25) =12510a(26) =14721a(27) =13220a(28) =17101a(29) =16970