83677

Appears in sequences

• Iccanartet sequence: a(n)=R[a(n-1)]+R[a(n-2)]+R[a(n-3)]+R[a(n-4)] where a(1)=a(2)=a(3)=a(4)=1 and R(n) (A004086) is the reverse of n.at n=15A074862
• Products (semiprimes) of two distinct double-safe primes.at n=29A157356