[seqfan] A025129
israel at math.ubc.ca
israel at math.ubc.ca
Mon Apr 7 02:23:52 CEST 2014
The stated definition of A025129 is
a(n) = s(1)s(n) + s(2)s(n-1) + ... + s(k)s(n-k+1), where k = [ n/2 ], s =
(primes).
According to this, we should have a(1) = 0, a(2) = A000040(1)*A000040(2) =
6, a(3) = A000040(1)*A000040(3) = 10, etc, but the given entries are 6, 10,
29, ... with offset 1,1.
So: change the definition, change the offset, or change the entries?
Robert Israel
University of British Columbia and D-Wave Systems
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