Number of -5..5 arrays x(0..n+1) of n+2 elements with zero sum and nonzero first and second differences.
A200451
Number of -5..5 arrays x(0..n+1) of n+2 elements with zero sum and nonzero first and second differences.
Terms
- a(0) =72a(1) =678a(2) =5720a(3) =50852a(4) =451708a(5) =4062384a(6) =36725772a(7) =334032710a(8) =3050654456a(9) =27965763262a(10) =257160791680
External references
- oeis: A200451