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A186658 Total number of n-digit numbers requiring 6 positive biquadrates in their representation as sum of biquadrates. 18

%I #15 Apr 29 2016 05:14:12

%S 1,6,71,877,11437,140179,1567562,16444269,158993052,1448222849,

%T 12807964358

%N Total number of n-digit numbers requiring 6 positive biquadrates in their representation as sum of biquadrates.

%C A102831(n) + A186650(n) + A186652(n) + A186654(n) + A186656(n) + a(n) + A186660(n) + A186662(n) + A186664(n) + A186666(n) + A186668(n) + A186670(n) + A186672(n) + A186674(n) + A186676(n) + A186678(n) + A186681(n) + A186683(n) + A186685(n) = A052268(n), for n>1.

%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/WaringsProblem.html">Waring's Problem.</a>

%F a(n) = A186657(n) - A186657(n-1).

%Y Cf. A003340, A186657.

%K nonn,more,base

%O 1,2

%A _Martin Renner_, Feb 25 2011

%E a(5)-a(11) from _Giovanni Resta_, Apr 29 2016

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Last modified May 4 21:18 EDT 2024. Contains 372257 sequences. (Running on oeis4.)