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A134272 Alternating row sums of triangle A134151. 2
1, 3, 25, 239, 3289, 53111, 1031497, 22906903, 578734697, 16306214743, 508360540457, 17354157283287, 644314385719593, 25842490815894231, 1113789927340848937, 51332921853722842327, 2519491205735072674601 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
LINKS
FORMULA
a(n)=sum(A134151(n,m)*(-1)^(m-1),m=1..n), n>=1.
CROSSREFS
Cf. A134152 (row sums of triangle A134151).
Sequence in context: A370280 A367786 A332468 * A335117 A346539 A350224
KEYWORD
nonn,easy
AUTHOR
Wolfdieter Lang Nov 13 2007
STATUS
approved

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Last modified September 18 03:51 EDT 2024. Contains 375995 sequences. (Running on oeis4.)