A269062 Magic sums of 3 X 3 semimagic squares composed of positive triangular numbers and squares.

136, 146, 161, 175, 200, 230, 236, 250, 263, 277, 280, 290, 301, 316, 317, 326, 340, 346, 355, 370, 382, 394, 395, 398, 406, 410, 416, 421, 425, 431, 434, 436, 445, 446, 450, 461, 470, 472, 481, 484, 487, 494, 497, 499, 502, 511, 515, 518, 520, 527, 530

Offset

1,1

Links

Andrew Howroyd, Table of n, a(n) for n = 1..3093

Example

A semimagic square with sum 136:
  |----|----|----|
  |  6 | 25 |105 |
  |----|----|----|
  | 49 | 66 | 21 |
  |----|----|----|
  | 81 | 45 | 10 |
  |----|----|----|

Crossrefs

Cf. A269060, A269061.

Sequence in context: A056740 A065663 A365328 * A270301 A281241 A072884

Adjacent sequences: A269059 A269060 A269061 * A269063 A269064 A269065

Keyword

nonn,changed

Author

Arkadiusz Wesolowski, Feb 18 2016

Status

approved