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A005792 Numbers that are the sum of 2 squares or 3 times a square.
(Formerly M0529)
+0
1
1, 2, 3, 4, 5, 8, 9, 10, 12, 13, 16, 17, 18, 20, 25, 26, 27, 29, 32, 34, 36, 37, 40, 41, 45, 48, 49, 50, 52, 53, 58, 61, 64, 65, 68, 72, 73, 74, 75, 80, 81, 82, 85, 89, 90, 97, 98, 100, 101, 104, 106, 108, 109, 113, 116, 117, 121, 122, 125, 128, 130, 136, 137, 144, 145 (list; graph; listen)
OFFSET

1,2

REFERENCES

N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).

S. L. Snover, C. Wavereis and J. K. Williams, Rep-tiling for triangles, Discrete Math. 91 (1991), no. 2, 193-200.

LINKS

Index entries for sequences related to sums of squares

CROSSREFS

Sequence in context: A031999 A023760 A032901 this_sequence A102471 A094566 A087278

Adjacent sequences: A005789 A005790 A005791 this_sequence A005793 A005794 A005795

KEYWORD

nonn,easy

AUTHOR

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

EXTENSIONS

More terms from Larry Reeves (larryr(AT)acm.org), Mar 21 2001

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Last modified November 24 23:16 EST 2009. Contains 167481 sequences.


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