|
| |
|
|
A052458
|
|
Number of trimagic series for squares of order n.
|
|
6
| |
|
|
1, 0, 0, 2, 2, 0, 0, 121, 126, 0, 31187, 2226896, 17265701, 0, 69303997733
(list; graph; refs; listen; history; internal format)
|
|
|
|
OFFSET
| 1,4
|
|
|
REFERENCES
| M. Kraitchik, Mathematical Recreations, 1942, see Section 7.10.
|
|
|
LINKS
| Christian Boyer, Multimagic Squares
Eric Weisstein's World of Mathematics, Multimagic Series
|
|
|
CROSSREFS
| Cf. A052456, A052457, A090653, A092312, A090037.
Sequence in context: A190389 A176127 A087637 * A004586 A116511 A195679
Adjacent sequences: A052455 A052456 A052457 * A052459 A052460 A052461
|
|
|
KEYWORD
| nonn,more,nice
|
|
|
AUTHOR
| Eric Weisstein (eric(AT)weisstein.com)
|
|
|
EXTENSIONS
| Corrected and extended Nov 15 2003, using the values of a(3) through a(12) from Christian Boyer's web site. - N. J. A. Sloane (njas(AT)research.att.com).
One more term from Christian Boyer (cboyer(AT)club-internet.fr), Nov 05 2004
One further term from Christian Boyer (cboyer(AT)club-internet.fr), May 30 2005
a(15) computed by Michael Quist, and communicated by Christian Boyer (cboyer(AT)club-internet.fr), Feb 06 2009
|
| |
|
|
