143840

Appears in sequences

• a(n) = n*(n+1)*(n+2)*(n+3)/6.at n=29A033488
• Sum of the divisors of the n-th Bell number.at n=10A262349
• Sum of odd divisors of Bell(n).at n=10A280589
• Array read by antidiagonals: A(n,k) is the number of nonnegative integer matrices with k columns and any number of nonzero rows with column sums n and columns in nonincreasing lexicographic order.at n=42A331315
• Number of nonnegative integer matrices with 2 distinct columns and any number of nonzero rows with column sums n and columns in decreasing lexicographic order.at n=6A331397