OFFSET

1,1

COMMENTS

The sequence is increasing only up to a(23) = 3461 > a(24) = 3449. - M. F. Hasler, Jan 25 2013

LINKS

Zak Seidov and Donovan Johnson, Table of n, a(n) for n = 1..1000 (first 200 terms from Zak Seidov)

Zak Seidov, First 300 terms of A025415

EXAMPLE

a(1) = 1^2+2^2+3^2 = 1+4+9 = 14, which obviously is the smallest sum of 3 distinct nonzero squares and cannot be written otherwise as such a sum.

a(2) = 1^2+5^2+6^2 = 1+25+36 = 2^2+3^2+7^2 = 4+9+49 = 62.

CROSSREFS

KEYWORD

nonn

AUTHOR

STATUS

approved