A109721 Number of different ways of selecting n nonempty cells in a 4 X 4 binary matrix, excluding all rotationally and symmetrically equivalent matrices.
1, 3, 21, 77, 252, 567, 1051, 1465, 1674, 1465, 1051, 567, 252, 77, 21, 3, 1
Offset: 0
Crossrefs
A row of A054252.