Number of length n+2 0..4 arrays with the sum of second differences squared multiplied by some arrangement of +-1 equal to zero.
A250316
Number of length n+2 0..4 arrays with the sum of second differences squared multiplied by some arrangement of +-1 equal to zero.
Terms
- a(0) =13a(1) =117a(2) =233a(3) =1773a(4) =8767a(5) =57833a(6) =363457a(7) =2317841a(8) =14305925a(9) =85334033a(10) =487200669a(11) =2669191565a(12) =14140938607
External references
- oeis: A250316