A271712 a(n) = smallest magic sum of any 4 X 4 magic square composed of n-gonal numbers.

1402, 2823, 2591234, 4347245, 95803378, 4818162, 160959761, 156127479

Offset: 3

Author

Arkadiusz Wesolowski, Apr 12 2016

Keywords

• nonn
• more

Links

• Christian Boyer, Smallest magic squares of triangular numbers
• Index entries for sequences related to magic squares

Crossrefs

Cf. A271579, A271580, A271711.

Formula

a(n) = Sum_{k=1..4} A271711(n,k).

Extensions

a(6)-a(10) were found in 2013 and 2014 by Lee Morgenstern