47560

Appears in sequences

• Overlay of Pell companion numbers: a(n) = A001333(n) + A001333(n-6).at n=13A131721
• Number of involutions avoiding the pattern 1342.at n=13A230553
• Triangle read by rows: T(n,k) is the number of n X n binary matrices with k=0..n^2 ones forming a polyomino, under action of dihedral group of the square D_4.at n=50A331462