62678

Appears in sequences

• a(n) = T(3n,n), where T is the array in A026120.at n=6A026129
• Number of nondecreasing arrangements of n+3 numbers in 0..8 with each number being the sum mod 9 of three others.at n=7A183903
• a(n) is the number of subsets of {1,2,...,n} with at least two elements and the difference between successive elements at least 6.at n=42A335184