80428

Appears in sequences

• Number of compositions of n into a square number of parts.at n=20A103198
• Number of ordered set partitions of the multiset [a,a,1,1,...,1] with two "a" and n "1".at n=24A209633
• Number of compositions of 8*n into parts 7 and 8.at n=18A373913
• a(n) = Sum_{k=0..floor(4*n/7)} binomial(k,4*n-7*k).at n=36A392355