A097716 Left-hand edge of triangle in A097474.

1, -1, 2, -17, 124, -2764, 43688, -1859138, 51236656, -3550889296, 151107728672, -15494138893232, 941930695305664, -133994296272170944, 11024086088089751168, -2077570618897716831248, 222290021402867410844416, -53603997631397508980982016, 7234385689981722178901729792

Offset: 0

Author

N. J. A. Sloane, Sep 21 2004

Keywords

• sign
• easy

Extensions

More terms from Emeric Deutsch, Dec 24 2004