880163

Appears in sequences

• Number of perfect matchings in graph P_{2} X P_{3} X P_{n}.at n=7A028447
• Number of perfect matchings in graph P_{2} X P_{7} X P_{n}.at n=3A028451
• T(n,k) = number of n X k matrices containing a permutation of 1..n*k moving each element at most to a neighboring position.at n=38A181206
• T(n,k) = number of n X k matrices containing a permutation of 1..n*k moving each element at most to a neighboring position.at n=42A181206