157091

Appears in sequences

• a(n) = (15*n^4 + 22*n^3 + 45*n^2 + 14*n) / 24.at n=22A101166
• a(n) is the number of quintuples (a_1,a_2,a_3,a_4,a_5) having all terms in {1,...,n} such that there exists a pentagon with these side-lengths.at n=11A346637
• Number of subsets of {1,2,...,n} such that no two elements differ by 2, 4, or 5.at n=33A375983