A090037 Number of tetramagic (4-multimagic) series for squares of order n.

1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 106, 555, 0, 0, 235275

Offset: 1

Author

Eric W. Weisstein, Nov 19 2003

Keywords

• nonn
• more

Links

• Christian Boyer, Multimagic Squares
• Eric Weisstein's World of Mathematics, Magic Series

Crossrefs

Cf. A052456, A052457, A052458, A090653, A092312, A106646.

Extensions

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)=0 proved by Robert Gerbitz and communicated by Christian Boyer (cboyer(AT)club-internet.fr), Apr 02 2007

a(16) computed by Michael Quist, and communicated by Christian Boyer (cboyer(AT)club-internet.fr), Feb 06 2009