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A088063 a(1) = 1, a(n) = smallest square obtained by prefixing a multiple of n to a(n-1). 2
1, 81, 19881, 1926419881, 121775642151926419881, 235039690681119003888121775642151926419881, 36607881966437971419803962177283371311043235039690681119003888121775642151926419881 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..7.

EXAMPLE

a(2) = 81, a(3) = 19881 = 141^2 is obtained by prefixing 198 =3*66, to 81.

CROSSREFS

Cf. A088064.

Sequence in context: A116007 A013829 A100533 * A017200 A017308 A017428

Adjacent sequences:  A088060 A088061 A088062 * A088064 A088065 A088066

KEYWORD

base,nonn

AUTHOR

Amarnath Murthy, Sep 21 2003

EXTENSIONS

Corrected and extended by Hans Havermann, Mar 01 2004

STATUS

approved

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Last modified December 17 16:30 EST 2014. Contains 252031 sequences.