a(n) = number of new distinct proper angles with vertex and legs on grid points in an n X n square grid that were not found in an (n-1) X (n-1) square grid.
A252592
a(n) = number of new distinct proper angles with vertex and legs on grid points in an n X n square grid that were not found in an (n-1) X (n-1) square grid.
Terms
- a(0) =2a(1) =8a(2) =18a(3) =38a(4) =88a(5) =115a(6) =204a(7) =308a(8) =375a(9) =533a(10) =848a(11) =693a(12) =1405a(13) =1377a(14) =1627a(15) =2116a(16) =3121a(17) =2419a(18) =4238a(19) =4107a(20) =4295a(21) =5057a(22) =7566a(23) =5516a(24) =9440a(25) =8950a(26) =9727a(27) =10089a(28) =14899a(29) =10000
External references
- oeis: A252592