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A136563 Leftmost column of triangle A136561. 2
1, 2, 4, -5, 13, -30 (list; graph; refs; listen; history; internal format)
OFFSET

1,2

COMMENTS

Requiring that the absolute values of the differences in the difference triangle only occur at most once each leads to the Zorach additive triangle. (See A035312.) The leftmost column of the Zorach additive triangle is A035311.

CROSSREFS

Cf. A035311, A136561, A136562.

Sequence in context: A079407 A078652 A102992 * A127077 A104549 A174513

Adjacent sequences:  A136560 A136561 A136562 * A136564 A136565 A136566

KEYWORD

more,sign

AUTHOR

Leroy Quet Jan 06 2008

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Last modified February 14 19:37 EST 2012. Contains 205663 sequences.