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A022820 [ n/1 ] - [ (n-1)/2 ] + [ (n-2)/3 ] - ... + ((-1)^n)[ 2/(n-1) ]. 0
2, 2, 3, 4, 5, 4, 6, 7, 8, 7, 8, 9, 12, 10, 11, 12, 13, 12, 15, 16, 17, 14, 16, 17, 20, 19, 20, 21, 22, 19, 22, 23, 26, 24, 25, 26, 29, 26, 27, 28, 29, 28, 33, 34, 35, 30, 32, 33, 36, 35, 36, 37, 40, 37, 40, 41, 42, 39, 40, 41, 46, 42, 45, 46, 47, 46, 49, 50, 51, 46 (list; graph; refs; listen; history; internal format)
OFFSET

0,1

CROSSREFS

Sequence in context: A030564 A205114 A094457 * A069928 A135585 A081094

Adjacent sequences:  A022817 A022818 A022819 * A022821 A022822 A022823

KEYWORD

nonn

AUTHOR

Clark Kimberling (ck6(AT)evansville.edu)

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Last modified February 16 14:37 EST 2012. Contains 205930 sequences.