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Search: id:A034989
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A034989 Smallest squares starting with a string of n 6's. +0
2
64, 66049, 6661561, 6666724, 66666207204, 6666662032144, 66666669781156, 666666667972321, 666666666784689561, 66666666662139024481, 66666666666067063944516, 6666666666663510150195841, 66666666666662415539262729, 666666666666660853687280656 (list; graph; listen)
OFFSET

1,1

MATHEMATICA

For[i = 1, i < 20, i++, zeros = 0; isFound = False;

While[ !isFound, low = Ceiling[ Sqrt[ 2/3*(10^i - 1)*10^zeros ] ]; high = Floor[ Sqrt[ (2/3*(10^i - 1) + 1)*10^zeros ] ]; isFound = (low <= high); zeros++ ]; Print[ low, " ", low^2 ] ]

CROSSREFS

Cf. A034988.

Sequence in context: A123394 A069445 A013832 this_sequence A016878 A029753 A036533

Adjacent sequences: A034986 A034987 A034988 this_sequence A034990 A034991 A034992

KEYWORD

nonn,base

AUTHOR

Patrick De Geest (pdg(AT)worldofnumbers.com), Nov 15 1998.

EXTENSIONS

Program and more terms from Jonathan Cross (jcross(AT)wcox.com), Oct 15 2001

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Last modified July 26 23:19 EDT 2008. Contains 142293 sequences.


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