Number of lower triangles of a 5X5 integer array with all row and column sums zero and all row and column sums of squares <= 2n^2.
A195893
Number of lower triangles of a 5X5 integer array with all row and column sums zero and all row and column sums of squares <= 2n^2.
Terms
- a(0) =83a(1) =1349a(2) =14831a(3) =68551a(4) =241221a(5) =680115a(6) =1686561a(7) =3665777a(8) =7197327a(9) =13441577a(10) =23509903a(11) =38130019a(12) =62475265a(13) =96810419a(14) =144798413a(15) =211419333a(16) =301429771a(17) =421198113a(18) =580071707a(19) =789348015a(20) =1055270897a(21) =1390678351a(22) =1808027465
External references
- oeis: A195893