This site is supported by donations to The OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A186682 Total number of positive integers below 10^n requiring 18 positive biquadrates in their representation as sum of biquadrates. 19
 0, 2, 19, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS A114322(n) + A186649(n) + A186651(n) + A186653(n) + A186655(n) + A186657(n) + A186659(n) + A186661(n) + A186663(n) + A186665(n) + A186667(n) + A186669(n) + A186671(n) + A186673(n) + A186675(n) + A186677(n) + A186680(n) + a(n) + A186684(n) = A002283(n) a(n) = 24 for n >= 4. - Nathaniel Johnston, May 09 2011 Continued fraction expansion of (185-sqrt(145))/355. - Bruno Berselli, May 10 2011 LINKS Weisstein, Eric W.: MathWorld -- Waring's Problem. FORMULA G.f.: x^2*(2+17*x+5*x^2)/(1-x). - Bruno Berselli, May 10 2011 CROSSREFS Cf. A046049. Sequence in context: A018696 A175451 A004023 * A031030 A083689 A102617 Adjacent sequences:  A186679 A186680 A186681 * A186683 A186684 A186685 KEYWORD nonn AUTHOR Martin Renner, Feb 25 2011 EXTENSIONS a(5)-a(6) from Lars Blomberg, May 08 2011 a(7) from Charles R Greathouse IV, May 08, 2011 Terms after a(7) from Nathaniel Johnston, May 09 2011 STATUS approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent | More pages
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified October 19 00:36 EDT 2018. Contains 316327 sequences. (Running on oeis4.)