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A132648 A 7 X 7 magic square made from the first 49 triangular numbers, read by rows. +0
1
0, 378, 1176, 210, 595, 6, 435, 3, 351, 45, 465, 703, 1128, 105, 946, 171, 561, 820, 190, 21, 91, 741, 528, 36, 325, 120, 15, 1035, 1081, 300, 55, 496, 780, 10, 78, 28, 666, 66, 231, 276, 630, 903, 1, 406, 861, 253, 136, 990, 153 (list; graph; listen)
OFFSET

1,2

COMMENT

The magic sum is 2800. Magic square with consecutive triangular numbers from 0 to 1176.

LINKS

Christian Boyer, Magic square of the first triangular numbers.

EXAMPLE

Here is the magic square:

0 378 1176 210 595 6 435

3 351 45 465 703 1128 105

946 171 561 820 190 21 91

741 528 36 325 120 15 1035

1081 300 55 496 780 10 78

28 666 66 231 276 630 903

1 406 861 253 136 990 153

CROSSREFS

Sequence in context: A116339 A098840 A065702 this_sequence A071624 A058041 A047632

Adjacent sequences: A132645 A132646 A132647 this_sequence A132649 A132650 A132651

KEYWORD

fini,full,nonn,tabf

AUTHOR

Parthasarathy Nambi (PachaNambi(AT)yahoo.com), Nov 15 2007

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Last modified August 29 17:54 EDT 2008. Contains 143238 sequences.


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