44870

Appears in sequences

• Sum_{i for which n - i*(i-1)/2 >= 0} binomial (n - i*(i-1)/2, i).at n=31A063978
• a(n) = n * (2*n + 1) * (6*n^2 + 4*n + 1) / 3.at n=10A132123
• a(n) = 24*A274300(n) + 14.at n=11A274301
• Number of nX3 0..1 arrays with every element equal to 2, 3 or 4 king-move adjacent elements, with upper left element zero.at n=9A297861
• Regular triangle where T(n,k) is the number of pairs of set partitions of {1,...,n} with join of length k.at n=32A318392