A272932 a(n) = smallest magic sum of any 5 X 5 magic square composed of n-gonal numbers.

892, 1375, 7555

Offset

3,1

Links

Table of n, a(n) for n=3..5.

Christian Boyer, First known 4x4 to 7x7 magic squares of squares

Christian Boyer, Smallest magic squares of triangular numbers

Index entries for sequences related to magic squares

Crossrefs

Cf. A271712.

Sequence in context: A268876 A068752 A173349 * A309871 A063878 A063167

Adjacent sequences: A272929 A272930 A272931 * A272933 A272934 A272935

Keyword

nonn,bref,more

Author

Arkadiusz Wesolowski, May 11 2016

Extensions

a(4) was found in 2004 by Christian Boyer

a(5) was found in 2007 by Lee Morgenstern

Status

approved