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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 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 August 10 13:30 EDT 2020. Contains 336381 sequences. (Running on oeis4.)