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 A119998 a(n) is the smallest positive integer whose square starts with (at least) n identical digits. 5
 1, 15, 149, 2357, 10541, 57735, 745356, 1490712, 182574186, 298142397, 298142397, 1490711985, 1490711985, 10540925533895, 74535599249993, 105409255338946, 7453559924999299, 14907119849998598, 471404520791031683, 7453559924999298988 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 LINKS Alois P. Heinz, Table of n, a(n) for n = 1..200 FORMULA a(n) <= A119511(n). - R. J. Mathar, Aug 08 2006 a(n) = sqrt(A192934(n)). - Alois P. Heinz, Sep 02 2011 EXAMPLE Note that 15^2 = 225 and 149^2 = 22201. CROSSREFS Cf. A119511, A192934. Sequence in context: A021414 A211847 A055431 * A119511 A023069 A121035 Adjacent sequences:  A119995 A119996 A119997 * A119999 A120000 A120001 KEYWORD base,nonn AUTHOR Tanya Khovanova, Jul 26 2006 EXTENSIONS More terms from R. J. Mathar, Jul 29 2006 More terms from R. J. Mathar, Aug 08 2006 STATUS approved

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Last modified October 19 04:40 EDT 2019. Contains 328211 sequences. (Running on oeis4.)