5078109

Appears in sequences

• Number of n X n binary arrays symmetric about main diagonal with all ones connected only in a 2X4 tee 1,1 1,2 1,3 2,3 1,4 in any orientation.at n=11A146041
• Number of n X n binary arrays symmetric about the diagonal and under 90 degree rotation with all ones connected only in a 2X4 tee 1,1 1,2 1,3 2,3 1,4 in any orientation.at n=24A146043
• Number of n X n binary arrays symmetric about the diagonal and under 90 degree rotation with all ones connected only in a 2X4 tee 1,1 1,2 1,3 2,3 1,4 in any orientation.at n=25A146043