Number of triangular of a 5 X 5 X 5 0..n arrays with all rows and diagonals having the same length having the same sum, with corners zero.
A195806
Number of triangular of a 5 X 5 X 5 0..n arrays with all rows and diagonals having the same length having the same sum, with corners zero.
Terms
- a(0) =16a(1) =105a(2) =496a(3) =1759a(4) =5052a(5) =12469a(6) =27412a(7) =55059a(8) =102952a(9) =181543a(10) =304908a(11) =491563a(12) =765184a(13) =1155567a(14) =1699684a(15) =2442553a(16) =3438468a(17) =4752283a(18) =6460432a(19) =8652429a(20) =11432392a(21) =14920189a(22) =19253232a(23) =24588229a(24) =31102456a(25) =38995845a(26) =48492976a(27) =59844451a(28) =73329300
External references
- oeis: A195806