122523

Appears in sequences

• Number of nX5 0..3 arrays with rows nondecreasing and antidiagonals unimodal.at n=2A224021
• T(n,k)=Number of nXk 0..3 arrays with rows nondecreasing and antidiagonals unimodal.at n=23A224024
• Number of 3 X n 0..3 arrays with rows nondecreasing and antidiagonals unimodal.at n=4A224025
• Triangle read by rows: numerators of coefficients of the Hirzebruch L-polynomials L_n expressing the signature of a 4n-dimensional manifold in terms of its Pontrjagin numbers (as in Hirzebruch Signature Theorem).at n=21A237111