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A068237 Numerators of arithmetic derivative of 1/n: -A003415(n)/n^2; denominators: A068238. 2
0, -1, -1, -1, -1, -5, -1, -3, -2, -7, -1, -1, -1, -9, -8, -1, -1, -7, -1, -3, -10, -13, -1, -11, -2, -15, -1, -2, -1, -31, -1, -5, -14, -19, -12, -5, -1, -21, -16, -17, -1, -41, -1, -3, -13, -25, -1, -7, -2, -9, -20, -7, -1, -1 (list; graph; refs; listen; history; internal format)
OFFSET

1,6

CROSSREFS

Sequence in context: A115638 A055515 A136744 * A083345 A087262 A082343

Adjacent sequences:  A068234 A068235 A068236 * A068238 A068239 A068240

KEYWORD

sign,frac

AUTHOR

Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Feb 23 2002

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Last modified February 15 23:34 EST 2012. Contains 205860 sequences.