A146010 Number of n X n binary arrays symmetric about both diagonal and antidiagonal with all ones connected only in a 3X3 tee 1,1 1,2 1,3 2,2 3,2 in any orientation.

1, 1, 1, 1, 1, 1, 2, 5, 10, 17, 41, 113, 371, 1287, 4551, 19076, 90597, 483533, 2906704, 18699832, 136658284, 1121369297, 10362476826, 106541327541, 1220122346197, 15486094270737, 222171208299640, 3540873297034591, 63467027877319177