A130185 Third column (m=2) of triangle A130182.

1, 4, 28, 216, -2592, -449280, -42405120, -4187635200, -470931148800, -61395115622400, -9285015785472000, -1621094541631488000, -324607299684433920000, -74032650725692538880000, -19101781491742463754240000, -5540523747380685884620800000

Offset: 0

Author

Wolfdieter Lang Jun 01 2007

Keywords

• sign
• easy

Comments

See the M. Bruschi et al. reference and the W. Lang link given in A130182.

Crossrefs

Cf. A130186 (fourth column).

Formula

a(n)= A130185(n+2,2), n>=0.