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A156389 Number of 6X6 arrays of squares of integers, symmetric about both diagonal and antidiagonal, with all rows summing to n. 0
1, 20, 84, 136, 110, 232, 635, 616, 308, 788, 1718, 1568, 926, 1412, 2952, 3200, 1430, 1804, 5414, 6024, 3154, 3552, 7838, 7232, 3923, 5024, 9866, 13400, 8094, 6888, 16076, 17304, 6308, 8852, 23020, 23480, 16008, 13276, 22640, 27472, 16570, 11736, 31662 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..42.

CROSSREFS

Sequence in context: A041778 A219473 A256869 * A044207 A044588 A172221

Adjacent sequences:  A156386 A156387 A156388 * A156390 A156391 A156392

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 09 2009

STATUS

approved

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Last modified August 16 13:36 EDT 2017. Contains 290623 sequences.