409976

Appears in sequences

• Number of length 2+3 0..n arrays with no disjoint pairs in any consecutive four terms having the same sum.at n=12A247728
• Number of n X n 0..1 arrays with no element equal to more than one of its horizontal and antidiagonal neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards.at n=9A281198