A186678 - OEIS

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A186678

Total number of n-digit numbers requiring 16 positive biquadrates in their representation as sum of biquadrates.

18

0, 4, 43, 241, 299, 287, 304, 309, 316, 286, 299, 286, 309

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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) + A186676(n) + a(n) + A186681(n) + A186683(n) + A186685(n) = A052268(n), for n>1.

LINKS

Table of n, a(n) for n=1..13.

Eric Weisstein's World of Mathematics, Waring's Problem.

FORMULA

a(n) = A186677(n) - A186677(n-1).

CROSSREFS

Cf. A046047, A186677.

Sequence in context: A220774 A296683 A297649 * A186768 A130545 A027311

Adjacent sequences: A186675 A186676 A186677 * A186679 A186680 A186681

KEYWORD

nonn,base,more

AUTHOR

Martin Renner, Feb 25 2011

EXTENSIONS

a(5)-a(11) from Giovanni Resta, Apr 29 2016

a(12)-a(13) from Martin Fuller, Jan 13 2026

STATUS

approved