A213689 Smallest magic sum of an order-n magic square composed of consecutive Smith numbers.

252416863614, 10949070196804, 8719491322, 3873, 5551, 6496, 9179, 15681, 20978, 26062, 28301, 35936, 50560, 55330, 66877, 88738, 94465, 111840, 128860, 177659, 179929, 230580, 261107, 275220, 300070, 361843, 395338, 457169, 446645, 505470, 560168

Offset

3,1

Links

Table of n, a(n) for n=3..33.

Natalia Makarova, Smallest magic squares composed of consecutive Smith numbers (in Russian)

Example

3 X 3 magic square:
  84138954584 84138954498 84138954532
  84138954486 84138954538 84138954590
  84138954544 84138954578 84138954492
4 X 4 magic square:
  2737267549028 2737267549166 2737267549330 2737267549280
  2737267549305 2737267549265 2737267549134 2737267549100
  2737267549186 2737267549105 2737267549300 2737267549213
  2737267549285 2737267549268 2737267549040 2737267549211

Crossrefs

Cf. A006753, A170928, A189121.

Sequence in context: A288477 A268846 A076254 * A348800 A015432 A034618

Adjacent sequences: A213686 A213687 A213688 * A213690 A213691 A213692

Keyword

nonn,base

Author

Max Alekseyev, Jun 18 2012

Status

approved