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Search: id:A159775
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| A159775 |
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Numbers n with property that n^2 starts and ends with 81. |
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+0
2
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| 9, 2859, 9009, 9041, 28491, 28509, 28541, 28559, 28591, 28609, 90009, 90041, 90059, 90091, 90109, 90141, 90159, 90191, 90209, 90241, 90259, 90291, 90309, 90341, 90359, 90391, 90409, 90441, 90459, 90491, 90509, 90541, 284609, 284641, 284659
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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Most first differences are alternatively 18 and 32.
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EXAMPLE
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{9,2859,9009,9041,28491}^2={81,8173881,81162081,81739681,811737081}.
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CROSSREFS
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A159754 Numbers n with property that n^2 ends with 81. A159254 Numbers n with property that n^2 ends with 49. A111445 n-th row contains first n numbers whose squares end in n^2.
Sequence in context: A069704 A033997 A068729 this_sequence A162013 A046896 A036516
Adjacent sequences: A159772 A159773 A159774 this_sequence A159776 A159777 A159778
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KEYWORD
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base,nonn
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AUTHOR
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Zak Seidov (zakseidov(AT)yahoo.com), Apr 21 2009
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