55117511

Appears in sequences

• Number of compositions of 7*n into parts 5 and 7.at n=24A373911
• a(n) = Sum_{k=0..floor(2*n/5)} binomial(2*k,2*n-5*k).at n=42A392429
• Expansion of 1 / ((1-x)^5 - x^7).at n=28A392546