29647548

Appears in sequences

• a(n) = 7^(n-2) * C(n,2).at n=7A027474
• a(n) = 7*a(n-1) + (-1)^n * binomial(2,2-n) with a(-1)=0.at n=9A055270
• a(n) = n^n*binomial(n+2, 2).at n=7A081133
• Duplicate of A027474.at n=9A081137
• (n^3+n^2)*7^n.at n=5A129007
• Triangle read by rows: T(0,0) = 1; T(n,k) = 7 * T(n-1,k) + T(n-2,k-1) for k = 0..floor(n/2). T(n,k)=0 for n or k < 0.at n=38A317014
• Exponential barely abundant numbers: exponential abundant numbers whose exponential abundancy is closer to 2 than that of any smaller exponential abundant number.at n=13A336254
• Triangle read by rows. T(n, k) = n^(n - k) * |Stirling1(n, k)|.at n=30A355006