605600

Appears in sequences

• Number of sequences of n integers p(i) i=0..n-1 with 0<=p(i)<=9*i and -9<p(i)-p(i-1)<=9.at n=5A180914
• Number of 6-bead necklaces labeled with numbers -n..n allowing reversal, with sum zero and first and second differences in -n..n.at n=26A208973