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A134140
Alternating row sums of triangle A049374 (S1p(6)).
1
1, 5, 25, 95, -275, -14755, -278795, -4134145, -49014215, -304537195, 7111142545, 397535340575, 12667519999525, 327297915798125, 7052174242084525, 109425656597938175, -88497453300450575, -107470322009554282075, -6297063330456696598775
OFFSET
1,2
FORMULA
a(n) = Sum_{m=1..n} A049374(n,m)*(-1)^(m-1), n>=1.
E.g.f.: 1-exp(-(1-(1-x)^5)/(5*(1-x)^5)). Cf. e.g.f. first column of A049374.
CROSSREFS
Cf. A049402 (row sums of A049374).
Sequence in context: A297452 A147177 A057255 * A225011 A228457 A213293
KEYWORD
sign,easy
AUTHOR
Wolfdieter Lang Oct 12 2007
STATUS
approved