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

1,1

Comments

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

Links

Table of n, a(n) for n=1..63.

Example

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.

Sequence in context: A102500 A067757 A063779 * A125008 A379904 A290015

Adjacent sequences: A125003 A125004 A125005 * A125007 A125008 A125009

Keyword

easy,nonn

Author

Jens Voß, Nov 15 2006

Status

approved