Nothing Special   »   [go: up one dir, main page]
login
The OEIS is supported by the many generous donors to the OEIS Foundation.
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A156508
Number of n X n arrays of squares of integers, symmetric about both diagonal and antidiagonal, with all rows summing to 44.
0
2, 44, 48, 22618, 262332, 192850444, 6858194432, 9780453956696
(list; graph; refs; listen; history; text; internal format)
OFFSET
3,1
LINKS
Table of n, a(n) for n=3..10.
CROSSREFS
Sequence in context: A177490 A203498 A156478 * A239865 A007367 A006313
Adjacent sequences: A156505 A156506 A156507 * A156509 A156510 A156511
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 09 2009
STATUS
approved

Lookup Welcome Wiki Register Music Plot 2 Demos Index WebCam Contribute Format Style Sheet Transforms Superseeker Recents
The OEIS Community
Maintained by The OEIS Foundation Inc.
Last modified November 27 23:20 EST 2024. Contains 378181 sequences.
License Agreements, Terms of Use, Privacy Policy