A264609 A260685(4n).

-2, -6, 4, -54, 28, 132, 124, -4470, 444, 5964, 2044, 89028, 8188, 248172, 9784, -30229110, 131068, 7314348, 524284, 361466316, 174136, 354424812, 8388604, 54096506052, 16344060, 12926541804, 46427196, 1198466847468, 536870908, 216322653432

Offset

1,1

Links

Table of n, a(n) for n=1..30.

Crossrefs

Cf. A260685.

Sequence in context: A322825 A347555 A215408 * A126262 A330078 A258324

Adjacent sequences: A264606 A264607 A264608 * A264610 A264611 A264612

Keyword

sign

Author

N. J. A. Sloane, Nov 24 2015

Status

approved