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 A186676 Total number of n-digit numbers requiring 15 positive biquadrates in their representation as sum of biquadrates. 18
 0, 6, 60, 624, 6071, 60073, 600069, 6000069, 60000069, 600000061, 6000000071 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS A102831(n) + A186650(n) + A186652(n) + A186654(n) + A186656(n) + A186658(n) + A186660(n) + A186662(n) + A186664(n) + A186666(n) + A186668(n) + A186670(n) + A186672(n) + A186674(n) + a(n) + A186678(n) + A186681(n) + A186683(n) + A186685(n) = A052268(n), for n>1. LINKS Eric Weisstein's World of Mathematics, Waring's Problem. FORMULA a(n) = A186675(n) - A186675(n-1). CROSSREFS Cf. A046046, A186675. Sequence in context: A136936 A136893 A090019 * A322441 A186674 A186672 Adjacent sequences:  A186673 A186674 A186675 * A186677 A186678 A186679 KEYWORD nonn,base,more AUTHOR Martin Renner, Feb 25 2011 EXTENSIONS a(5)-a(11) from Giovanni Resta, Apr 29 2016 STATUS approved

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Last modified September 20 05:34 EDT 2021. Contains 347577 sequences. (Running on oeis4.)