A267118 -id:A267118 - cp's OEIS frontend

A271021 Magic sums of 3 X 3 semimagic squares of squares whose rows, columns, and at least one of the two main diagonals sum to the same number.

21609, 86436, 194481, 257049, 345744, 540225, 777924, 1028196, 1058841, 1172889, 1382976, 1750329, 2160900, 2313441, 2614689, 3111696, 3651921, 4112784, 4235364, 4691556, 4862025, 5531904, 6245001, 6426225, 7001316, 7800849, 8311689, 8643600, 9253764, 9529569

Offset: 1

Arkadiusz Wesolowski, Mar 28 2016

nonn

Index entries for sequences related to magic squares

Cf. A267118, A271020, A271022. Subsequence of A269061. Supersequence of A271022.

A271142 A 3 X 3 semimagic square of odd squares, read by rows.

Original entry on oeis.org

4713241, 182439049, 207158449, 278990209, 76545001, 38775529, 110607289, 135326689, 148376761

Offset: 1

Arkadiusz Wesolowski, Mar 31 2016

Three rows, three columns and one diagonal sum to the same number: 394310739 = A271022(1).

			The semimagic square is
|---------|---------|---------|
| 4713241 |182439049|207158449|
|---------|---------|---------|
|278990209| 76545001| 38775529|
|---------|---------|---------|
|110607289|135326689|148376761|
|---------|---------|---------|
It is:
|---------|---------|---------|
|  2171^2 | 13507^2 | 14393^2 |
|---------|---------|---------|
| 16703^2 |  8749^2 |  6227^2 |
|---------|---------|---------|
| 10517^2 | 11633^2 | 12181^2 |
|---------|---------|---------|

Christian Boyer, Magic squares of squares
Index entries for sequences related to magic squares

Cf. A267118, A271022.

cp's OEIS Frontend

A271021 Magic sums of 3 X 3 semimagic squares of squares whose rows, columns, and at least one of the two main diagonals sum to the same number.

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