89149

Appears in sequences

• Expansion of Product_{k>=1} (1 - x^(6*k)) * (1 + x^k) / (1 - x^k).at n=30A280874
• a(n) = Sum_{k=0..n} binomial(k, 7*(n-k)).at n=21A306721
• Expansion of 1 / (1 - Sum_{i>=1, j>=1} x^(i*(j + 1))).at n=23A327798
• a(n) = Sum_{k=0..floor(4*n/7)} binomial(k+1,4*n-7*k).at n=35A390218