A159421 Number of n X n arrays of squares of integers summing to 28.

12, 18180, 17678180, 23906871625, 33142751210880, 40920467881841016, 39881847574391332064, 27839801028626330786100, 12898777607987820532044600, 3796362296831030040318923015, 708799758875178944116824699876

Offset

2,1

Links

R. H. Hardin, Table of n, a(n) for n = 2..100

Vaclav Kotesovec, G.f. for A159421

Formula

G.f.: see link above. - Vaclav Kotesovec, Dec 04 2012

Crossrefs

Sequence in context: A013514 A340166 A125547 * A159369 A175882 A216874

Adjacent sequences: A159418 A159419 A159420 * A159422 A159423 A159424

Keyword

nonn

Author

R. H. Hardin, Apr 11 2009

Status

approved