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 A010477 Decimal expansion of square root of 21. 13
 4, 5, 8, 2, 5, 7, 5, 6, 9, 4, 9, 5, 5, 8, 4, 0, 0, 0, 6, 5, 8, 8, 0, 4, 7, 1, 9, 3, 7, 2, 8, 0, 0, 8, 4, 8, 8, 9, 8, 4, 4, 5, 6, 5, 7, 6, 7, 6, 7, 9, 7, 1, 9, 0, 2, 6, 0, 7, 2, 4, 2, 1, 2, 3, 9, 0, 6, 8, 6, 8, 4, 2, 5, 5, 4, 7, 7, 7, 0, 8, 8, 6, 6, 0, 4, 3, 6, 1, 5, 5, 9, 4, 9, 3, 4, 4, 5, 0, 3 (list; constant; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Continued fraction expansion is 4 followed by {1, 1, 2, 1, 1, 8} repeated. - Harry J. Smith, Jun 03 2009 LINKS Harry J. Smith, Table of n, a(n) for n = 1..20000 Frankfurter Allgemeine Zeitung, Feb 09 2011 (in German) EXAMPLE 4.582575694955840006588047193728008488984456576767971902607242123906868... MATHEMATICA RealDigits[N[Sqrt[21], 200]][[1]] (* Vladimir Joseph Stephan Orlovsky, Feb 22 2011 *) PROG (PARI) { default(realprecision, 20080); x=sqrt(21); for (n=1, 20000, d=floor(x); x=(x-d)*10; write("b010477.txt", n, " ", d)); } \\ Harry J. Smith, Jun 03 2009 CROSSREFS Cf. A010125 (continued fraction). Sequence in context: A152974 A180307 A263208 * A195386 A259468 A143717 Adjacent sequences:  A010474 A010475 A010476 * A010478 A010479 A010480 KEYWORD nonn,cons AUTHOR STATUS approved

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Last modified January 23 03:05 EST 2019. Contains 319368 sequences. (Running on oeis4.)