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A023961
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First digit after decimal point of square root of n.
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12
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0, 4, 7, 0, 2, 4, 6, 8, 0, 1, 3, 4, 6, 7, 8, 0, 1, 2, 3, 4, 5, 6, 7, 8, 0, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 0, 1, 2, 3, 4, 4, 5, 6, 7, 7, 8, 9, 0, 0, 1, 2, 2, 3, 4, 4, 5, 6, 6, 7, 8, 8, 9, 0, 0, 1, 1, 2, 3, 3, 4, 4, 5, 6, 6, 7, 7, 8, 8, 9, 0, 0, 1, 1, 2, 2, 3
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,2
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LINKS
| Nathaniel Johnston, Table of n, a(n) for n = 1..10000
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MAPLE
| A023961 := proc(n) return floor(10*sqrt(n)) mod 10: end: seq(A023961(n), n=1..100); # Nathaniel Johnston, May 04 2011
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MATHEMATICA
| Array[ Function[ n, RealDigits[ N[ Power[ n, 1/2 ], 10 ], 10 ]// (#[ [ 1, #[ [ 2 ] ]+1 ] ])& ], 110 ]
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CROSSREFS
| Cf. A111862, A111850, A111851, A111852, A111853, A111854, A111855, A111856, A111857, A111858, A111859.
Sequence in context: A133982 A069179 A058377 * A147863 A019976 A021072
Adjacent sequences: A023958 A023959 A023960 * A023962 A023963 A023964
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KEYWORD
| nonn,easy,base
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com), Olivier Gerard (olivier.gerard(AT)gmail.com)
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