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A000424 Differences of reciprocals of unity.
(Formerly M4448 N1883)
3
7, 85, 1660, 48076, 1942416, 104587344, 7245893376, 628308907776, 66687811660800, 8506654697548800 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

REFERENCES

F. N. David, M. G. Kendall and D. E. Barton, Symmetric Function and Allied Tables, Cambridge, 1966, p. 228.

N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 (includes this sequence).

N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).

CROSSREFS

Essentially the same as A060237.

Column 2 in triangle A008969.

Sequence in context: A049412 A056547 A121020 * A060237 A207214 A000686

Adjacent sequences:  A000421 A000422 A000423 * A000425 A000426 A000427

KEYWORD

nonn

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com).

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Last modified February 17 10:05 EST 2012. Contains 206009 sequences.