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A271582 Magic sums of 4 X 4 magic squares composed of odd squares. 2
11220, 15300, 17300, 17316, 19380, 20900, 26900, 27300, 28100, 29900, 31620, 33660, 34060, 34580, 35700, 39100, 39780, 42500, 42900, 43540, 43732, 43860, 44748, 45900, 46900, 47580, 47892, 47940, 49300, 50700, 51508, 52260, 53300, 53980, 54340, 55100, 55796 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Every number of the form 8*x + 4, where x is a term of A271579, is in the sequence.

LINKS

Table of n, a(n) for n=1..37.

Index entries for sequences related to magic squares

EXAMPLE

Examples of 4 X 4 magic squares composed of odd squares.

.

|-----|-----|-----|-----|

| 23^2| 3^2 | 49^2| 91^2|

|-----|-----|-----|-----|

| 61^2| 71^2| 37^2| 33^2|

|-----|-----|-----|-----|

| 79^2| 29^2| 63^2| 13^2|

|-----|-----|-----|-----|

| 27^2| 73^2| 59^2| 41^2|

|-----|-----|-----|-----|

The magic constant is 11220 = a(1).

.

|-----|-----|-----|-----|

| 3^2 | 19^2| 59^2|107^2|

|-----|-----|-----|-----|

| 49^2|103^2| 47^2| 9^2 |

|-----|-----|-----|-----|

|113^2| 39^2| 31^2| 7^2 |

|-----|-----|-----|-----|

| 11^2| 53^2| 93^2| 61^2|

|-----|-----|-----|-----|

The magic constant is 15300 = a(2).

CROSSREFS

Cf. A016754, A271579. Subsequence of A271580. Supersequence of A271583.

Sequence in context: A001727 A190793 A247925 * A185797 A256355 A135015

Adjacent sequences:  A271579 A271580 A271581 * A271583 A271584 A271585

KEYWORD

nonn

AUTHOR

Arkadiusz Wesolowski, Apr 10 2016

STATUS

approved

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Last modified January 19 20:41 EST 2020. Contains 331066 sequences. (Running on oeis4.)