

A177887


The areas of Pythagorean triangles divided by 6.


0



1, 4, 5, 9, 10, 14, 16, 20, 25, 30, 35, 36, 40, 45, 49, 55, 56, 64, 80, 81, 84, 90, 91, 100, 105, 120, 121, 125, 126, 140, 144, 154, 160, 165, 169, 180, 196, 204, 220, 224, 225, 231, 245, 250, 256, 260, 270, 285, 286, 289, 315, 320, 324, 336, 350, 360, 361, 364, 385, 390
(list;
graph;
refs;
listen;
history;
text;
internal format)



OFFSET

1,2


COMMENTS

Number of terms less than 10^k: 4, 23, 109, 462, 1861, 7255, 27042, 95703, 314534, ..., .


REFERENCES

Albert H. Beiler, Recreations in the Theory of Numbers, The Queen of Mathematics Entertains, 2nd Ed., Chpt. XIV, "The Eternal Triangle", pp. 104134, Dover Publ., NY, 1964.


LINKS



FORMULA



MATHEMATICA

(* First run the program given for A009112 *) Union[t/6]


CROSSREFS



KEYWORD

nonn


AUTHOR



STATUS

approved



