A186676 - OEIS

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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, 60000000074, 600000000070

(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

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

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

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

STATUS

approved