47471

Appears in sequences

• T(n,n+3), array T as in A047089.at n=8A047097
• Numbers n such that n | sigma_12(n) + phi(n)^12.at n=8A055706
• a(n) = 1 + Sum(prime(i)*(2*i-1): 1<=i<=n).at n=26A083215
• Semiprimes formed by concatenating n, n, and 1 for n = 1, 2, 3,....at n=20A210711
• Partial sums of A299268.at n=30A299269