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A140554 First differences of A066841. 1
1, 1, 13, -11, 427, -425, 2041, -1805, 7757, -7989, 143327221, -143327219, 87795, 367817, 66653239, -67108847, 117546246127, -117546246125, 1310719999981, -1310704247039, -10301185, -5451753, 252428641478023053289, -252428641478022975187, 35917523 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

LINKS

Table of n, a(n) for n=1..25.

CROSSREFS

Sequence in context: A196124 A196121 A083229 * A002591 A037055 A022969

Adjacent sequences:  A140551 A140552 A140553 * A140555 A140556 A140557

KEYWORD

sign

AUTHOR

N. J. A. Sloane, Sep 07 2009

STATUS

approved

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Last modified May 22 01:57 EDT 2013. Contains 225510 sequences.