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A069487 Areas of Pythagorean triangles (A069482, A069484, A069486). 3
30, 240, 840, 5544, 6864, 26520, 23256, 73416, 208104, 107880, 467976, 473304, 296184, 727560, 1494600, 2101344, 863760, 3138816, 2625864, 1492704, 5259504, 4248936, 7623384, 12845904, 7759224, 4244424 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

a(n)=A030078(n+1)*A000040(n)-A000040(n+1)*A030078(n).

LINKS

Table of n, a(n) for n=1..26.

FORMULA

a(n)=A000040(n+1)^3*A000040(n)-A000040(n+1)*A000040(n)^3.

CROSSREFS

Sequence in context: A190068 A196412 A081779 * A008385 A061167 A189495

Adjacent sequences:  A069484 A069485 A069486 * A069488 A069489 A069490

KEYWORD

nonn

AUTHOR

Reinhard Zumkeller, Mar 29 2002

STATUS

approved

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Last modified May 22 18:33 EDT 2013. Contains 225561 sequences.