184411

Appears in sequences

• Number of imprimitive (periodic) n-bead necklaces with beads of 2 colors when turning over is allowed.at n=46A115119
• Number of nX5 binary arrays without the pattern 1 1 1 diagonally, vertically or antidiagonally.at n=3A188743
• T(n,k)=Number of nXk binary arrays without the pattern 1 1 1 diagonally, vertically or antidiagonally.at n=31A188747
• Number of 4 X n binary arrays without the pattern 1 1 1 diagonally, vertically or antidiagonally.at n=4A188749