A374937 Maximum number of squares covered (i.e., attacked) by 7 independent (i.e., nonattacking) queens on an n X n chessboard.
49, 64, 81, 100, 121, 144, 169, 194, 221, 242, 269, 294
Offset: 7
Crossrefs
Column 7 of A376732.
Formula
a(19) >= 321, a(20) >= 348.
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