Number of n X n binary arrays symmetric under 180 degree rotation with all ones connected only in a 110-100-111 pattern in any orientation.

A146178

Number of n X n binary arrays symmetric under 180 degree rotation with all ones connected only in a 110-100-111 pattern in any orientation.

Terms

    a(0) =1a(1) =1a(2) =1a(3) =1a(4) =5a(5) =29a(6) =161a(7) =905a(8) =3749a(9) =24539a(10) =286931a(11) =3046339a(12) =51706885a(13) =1159037433a(14) =32728917231a(15) =966827028811

External references