A125006 Numbers n for which nontrivial positive magic squares with magic sum n exist. For a definition of nontrivial positive magic squares, see A125005.

15, 18, 21, 24, 27, 30, 33, 34, 36, 38, 39, 42, 45, 46, 48, 50, 51, 54, 57, 58, 60, 62, 63, 65, 66, 69, 70, 72, 74, 75, 78, 80, 81, 82, 84, 85, 86, 87, 90, 93, 94, 95, 96, 98, 99, 100, 102, 105, 106, 108, 110, 111, 114, 115, 117, 118, 120, 122, 123, 125, 126, 129, 130

Offset: 1

Author

Jens Voß, Nov 15 2006

Keywords

• easy
• nonn

Comments

This sequence lists all values s such that A125005(s) > 0.

Examples

			a(1) = 15 because 15 is the smallest integer s for which a nontrivial positive magic square with magic sum s exists.
		

Crossrefs

Cf. A125005, A125007, A125008, A125009, A125010, A125011, A125012, A125013, A125014, A125015, A125016, A125017.