A018936 a(n) is the smallest square that is the sum of n distinct positive squares.

1, 25, 49, 81, 100, 169, 196, 289, 361, 529, 529, 900, 900, 1156, 1444, 1681, 2025, 2304, 2704, 3481, 3600, 4096, 4624, 4900, 5625, 6889, 7225, 8281, 9409, 10404, 11236, 11881, 12996, 14400, 15129, 16900, 18769, 19600, 21316, 23104, 24964, 25921, 27889

Offset

1,2

Links

Table of n, a(n) for n=1..43.

Formula

a(n) = A018935(n)^2. - Hugo Pfoertner, Sep 30 2023

Example

a(3) = 49 = 36 + 9 + 4 is the smallest square which is the sum of three distinct positive squares.

Crossrefs

Cf. A018935, A018937.

Sequence in context: A067794 A377884 A068874 * A212190 A324871 A241836

Adjacent sequences: A018933 A018934 A018935 * A018937 A018938 A018939

Keyword

nonn

Author

N. J. A. Sloane

Extensions

Corrected and extended by David W. Wilson

Name simplified by Jon E. Schoenfield, Sep 29 2023

Status

approved