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A145058
Second differences of A031443.
1
2, 5, -6, 1, 21, -21, -1, 2, -2, 1, 3, -4, 1, 2, 75, -75, -2, -1, 4, -3, -1, 2, -2, 1, 5, -5, -1, 2, -2, 1, 3, -4, 1, 2, 7, -9, -1, 2, -2, 1, 3, -4, 1, 2, 5, -8, 1, 2, 4, 279, -279, -4, -2, -1, 8, -5, -2, -1, 4, -3, -1, 2, -2, 1, 9, -7, -2, -1, 4, -3, -1, 2, -2, 1, 5, -5, -1, 2, -2, 1, 3, -4
OFFSET
1,1
CROSSREFS
Sequence in context: A134387 A222132 A318388 * A103130 A159987 A143678
KEYWORD
easy,sign,base
AUTHOR
Reikku Kulon, Sep 30 2008
STATUS
approved