A111468 Leading diagonal of A111467.

1, 3, 14, 56, 280, 1872, 11760, 104832, 1224720, 12545280, 96526080, 1163289600, 13891046400, 200222668800, 2917119744000, 47259168768000, 738275586048000, 13386781384704000, 259936372452556800, 5427242941317120000

Offset: 1

Author

Amarnath Murthy, Aug 05 2005

Keywords

• easy
• nonn

Crossrefs

Cf. A111467, A111469.

Extensions

More terms from David Wasserman, Feb 10 2009