151210

Appears in sequences

• a(n) = n + n*(n-1)*(n-2)*(n-3)*(n-4)*(n-5).at n=10A001096
• a(n) = Sum_{k=0..n} (k+1) * A026758(n, n-k).at n=13A027236
• If the decimal expansion of n is d_1 ... d_k, a(n) = Sum d_i!*binomial(10,d_i).at n=16A306958