60293428

Appears in sequences

• Number of ways to reciprocally link elements of an nX7 array either to themselves or to exactly two horizontal, diagonal and antidiagonal neighbors, without consecutive collinear links.at n=4A220737
• Number of ways to reciprocally link elements of an 5 X n array either to themselves or to exactly two horizontal, diagonal and antidiagonal neighbors, without consecutive collinear links.at n=6A220742