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A207322
a(n) = Sum{k=0..n} (-1)^k*A002893(k).
0
0, -3, 12, -81, 558, -4095, 31074, -241761, 1915998, -15403839, 125264226, -1028198769, 8505440256, -70821126339, 593013903996, -4989710564097, 42162715062462, -357607035133503, 3043168538309586, -25973801534610801, 222282241838388288, -1906876619917171299, 16394307639893817516, -141231930366941378721
OFFSET
0,2
CROSSREFS
Sequence in context: A303047 A197445 A303033 * A188227 A357665 A224608
KEYWORD
sign
AUTHOR
N. J. A. Sloane, Feb 16 2012
STATUS
approved