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

Author

N. J. A. Sloane

Keywords

• nonn

Examples

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

Crossrefs

Cf. A018935, A018937.

Formula

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

Extensions

Corrected and extended by David W. Wilson

Name simplified by Jon E. Schoenfield, Sep 29 2023