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A002789 Integral points in a quadrilateral.
(Formerly M1039 N0390)
0
2, 4, 7, 11, 16, 21, 28, 35 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

REFERENCES

Ehrhart, E.; Sur un probleme de geometrie diophantienne lineaire I. Polyedres et reseaux, J. Reine Angew. Math. 226 1967 1-29.

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

Sequence in context: A025718 A022783 A025708 * A024673 A083204 A061784

Adjacent sequences:  A002786 A002787 A002788 * A002790 A002791 A002792

KEYWORD

nonn

AUTHOR

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

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Last modified February 16 21:51 EST 2012. Contains 205978 sequences.