1440000000

Appears in sequences

• Total number of digits in palindromes with n digits.at n=15A240022
• Number of (n+2) X (5+2) 0..1 arrays with nondecreasing sum of every three consecutive values in every row and column.at n=5A251190
• Number of (n+2)X(6+2) 0..1 arrays with nondecreasing sum of every three consecutive values in every row and column.at n=4A251191