Number of nX2 0..3 arrays with no three equal values forming an isosceles triangle, and new values introduced in 0..3 order.
A273965
Number of nX2 0..3 arrays with no three equal values forming an isosceles triangle, and new values introduced in 0..3 order.
Terms
- a(0) =2a(1) =10a(2) =105a(3) =1264a(4) =13045a(5) =136063a(6) =1273961a(7) =11936399a(8) =95697853a(9) =800561388a(10) =5824237329a(11) =42821430074a(12) =277065391875
External references
- oeis: A273965