71112

Appears in sequences

• a(n+1) = a(n)/2 if 2|a(n), a(n)/3 if 3|a(n), a(n)/5 if 5|a(n), a(n)/7 if 7|a(n), a(n)/11 if 11|a(n), a(n)/13 if 13|a(n), otherwise 17*a(n)+1.at n=18A057534
• For n > 4, a(n) = a(n-1) + a(n-2) if n is even and a(n) = 3*a(n-2) + a(n-4) - a(n-5) if n is odd; a(0) = 0, a(1) = 1, a(2) = 1, a(3) = 2, and a(4) = 3.at n=21A318406