548204

Appears in sequences

• Number of -3..3 arrays x(0..n+1) of n+2 elements with zero sum and nonzero first and second differences.at n=6A200449
• T(n,k)=Number of -k..k arrays x(0..n+1) of n+2 elements with zero sum and nonzero first and second differences.at n=42A200454
• Number of -n..n arrays x(0..8) of 9 elements with zero sum and nonzero first and second differences.at n=2A200461