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A134845 Smallest number k not divisible by 10 such that k^2 contains exactly n zeros. +0
13
32, 101, 448, 1001, 10004, 10001, 100004, 100001 (list; graph; listen)
OFFSET

1,1

LINKS

J. Browkin, Groebner basis.

EXAMPLE

a(1)=32 because 32 is smallest number whose square contains exactly one zero.

CROSSREFS

Cf. A134843, A134844, A134846.

Adjacent sequences: A134842 A134843 A134844 this_sequence A134846 A134847 A134848

Sequence in context: A044219 A044600 A039519 this_sequence A063498 A039464 A044283

KEYWORD

nonn

AUTHOR

Artur Jasinski (grafix(AT)csl.pl), Nov 13 2007, Nov 16 2007

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Last modified January 8 02:43 EST 2009. Contains 152824 sequences.


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