139344

Appears in sequences

• Number of non-attacking configurations on a diamond of size n, where a prince attacks the four adjacent non-diagonal squares.at n=4A054867
• Number of independent sets in the generalized Aztec diamond E(L_7,L_{2n-1}).at n=4A254151
• Array read by antidiagonals: A(n,m) is the number of ways to place non-adjacent counters on the black squares of a 2n-1 X 2m-1 checker board.at n=40A331406