51337

Appears in sequences

• Number of squares in an n X n grid of squares with diagonals.at n=36A111500
• Number of partitions p of n such that 2*(number of even numbers in p) >= (number of odd numbers in p).at n=43A241654
• a(n) = binomial(n+3, 4) + binomial(n+1, 3) + 1.at n=31A368881
• The total number of levels visited by all Motzkin paths of length n.at n=12A372033
• G.f.: Sum_{k>=0} x^k * Product_{j=1..2*k} (1 + x^j)/(1 - x^j).at n=26A385088