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A090446
Alternating row sums of triangle A090441.
1
1, 0, 1, 0, 2, 0, -3118, 0, 442703522, 0, -13347247554466558, 0, 148707543361999816132646402, 0, -915656396935528170667809129675491481598, 0, 4312599964271304706198945861064290667787580951294464002, 0
OFFSET
-1,5
FORMULA
a(n)= sum(A090441(n, m)*(-1)^m, m=0..n+1), n>=-1.
CROSSREFS
Sequence in context: A036108 A265594 A269904 * A270830 A270829 A104157
KEYWORD
sign,easy
AUTHOR
Wolfdieter Lang, Dec 23 2003
STATUS
approved