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A055371 Column 1 of triangle A055370. 1
1, -1, 1, -1, 0, 5, -18, 27, 67, -496, 496, 6963, -24246, -148002, 1138045, 3360042, -58828040, -33243252, 3312139446, -5235582541, -204462055464, 726496668085, 14922365946662, -84161948692035, -1310383972147810 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,6

LINKS

Table of n, a(n) for n=1..25.

CROSSREFS

Sequence in context: A022142 A078648 A035338 * A034098 A034108 A155450

Adjacent sequences:  A055368 A055369 A055370 * A055372 A055373 A055374

KEYWORD

sign

AUTHOR

Christian G. Bower, May 16 2000

STATUS

approved

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Last modified October 22 01:42 EDT 2018. Contains 316431 sequences. (Running on oeis4.)