1171345

Appears in sequences

• Number of arrangements of n+1 numbers x(i) in -n..n with the sum of x(i)*x(i+1) equal to zero.at n=5A188349
• Number of arrangements of n+1 numbers x(i) in -6..6 with the sum of x(i)*x(i+1) equal to zero.at n=5A188355
• Number of arrangements of 7 numbers x(i) in -n..n with the sum of x(i)*x(i+1) equal to zero.at n=5A188362