A186670 - OEIS

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A186670

Total number of n-digit numbers requiring 12 positive biquadrates in their representation as sum of biquadrates.

18

0, 6, 62, 656, 6402, 60411, 600390, 6000430, 60000450, 600000451, 6000000424, 60000000407, 600000000393

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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) + a(n) + A186672(n) + A186674(n) + A186676(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) = A186669(n) - A186669(n-1).

CROSSREFS

Cf. A003346, A186669.

Sequence in context: A198965 A342959 A144063 * A190726 A386542 A380066

Adjacent sequences: A186667 A186668 A186669 * A186671 A186672 A186673

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