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A054738 Squares which can be split into two nonzero squares (perhaps with leading zeros) in two different ways. 1
64009, 1600225, 4950625, 6400900, 40005625, 160022500, 324900625, 360050625, 495062500, 624100324, 640090000 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

LINKS

Table of n, a(n) for n=0..10.

EXAMPLE

4950625=2225^2 can be split into 49=7^2 and 50625=225^2 or into 4=2^2 and 950625=975^2; 6400900=2530^2 can be split into 6400=80^2 and 900=30^2 or into 64=8^2 and 00900=30^2

CROSSREFS

Cf. A039686.

Sequence in context: A182089 A217126 A250823 * A250617 A031859 A182811

Adjacent sequences:  A054735 A054736 A054737 * A054739 A054740 A054741

KEYWORD

base,nonn

AUTHOR

Henry Bottomley, Apr 26 2000

STATUS

approved

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Last modified December 9 17:18 EST 2019. Contains 329879 sequences. (Running on oeis4.)