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A002338 x such that p = (x^2 + 27y^2 )/4.
(Formerly M3754 N1531)
+0
2
0, 1, 5, 7, 4, 11, 8, 1, 5, 7, 17, 19, 13, 2, 20, 23, 19, 14, 25, 7, 23, 11, 13, 28, 22, 17, 29, 26, 32, 16, 35, 1, 5, 37, 35, 13, 29, 34, 31, 19, 2, 28, 10, 23, 25, 32, 43, 29, 1, 31, 11 (list; graph; listen)
OFFSET

1,3

REFERENCES

A. J. C. Cunningham, Quadratic Partitions. Hodgson, London, 1904, p. 1.

B. Engquist and Wilfried Schmid, Mathematics Unlimited - 2001 and Beyond, Chapter on Error-correcting codes and curves over finite fields, see pp. 1118-1119. [From Neven Juric, Oct 16 2008.]

D. H. Lehmer, Guide to Tables in the Theory of Numbers. Bulletin No. 105, National Research Council, Washington, DC, 1941, p. 55.

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).

LINKS

S. R. Finch, Powers of Euler's q-Series, (arXiv:math.NT/0701251).

CROSSREFS

Cf. A002339.

Adjacent sequences: A002335 A002336 A002337 this_sequence A002339 A002340 A002341

Sequence in context: A021639 A096437 A096458 this_sequence A123489 A165242 A104542

KEYWORD

nonn

AUTHOR

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

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Last modified November 9 12:23 EST 2009. Contains 166233 sequences.


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