12353145

Appears in sequences

• 7th binomial transform of (1,1,0,0,0,0,...).at n=8A081107
• Numbers k such that the ratio of A117731(k) and A082687(k) is composite.at n=6A126563
• a(n) = (2*n-1)*(n-1)^(n-1).at n=8A176043
• a(n) = (2*n + 1)*7^n.at n=7A199300