39402

Appears in sequences

• Inflation orbit counts.at n=21A031367
• Number of partitions of n with equal nonzero number of parts congruent to each of 0 and 3 (mod 4).at n=52A035548
• Product of a prime and the previous number.at n=45A036689
• Non-palindromic numbers n such that phi(n) = phi(reversal(n)).at n=24A097647
• a(n) = (p+2)!/p! where p is the n-th lesser twin prime, A001359(n).at n=14A126251
• Numbers m such that gcd(A001008(m), m) > 1, in increasing order.at n=46A256102
• Least positive integer k such that prime(prime(prime(k)))+ prime(prime(prime(k*n))) = 2*prime(prime(p)) for some prime p.at n=26A261583
• a(n) is the least exponent k such that 3^k-1 is divisible by prime(n)^2, or -1 if no such k exists.at n=45A283620
• Trajectory of 397 under the map A340008: n -> n/2 if n is even, n-> n^2 - 1 if n is an odd prime, otherwise n -> n - 1.at n=3A340419
• a(0) = 397; a(n+1) = a(n)^2 if a(n) is prime, floor(a(n)/2) otherwise.at n=3A376801
• Record values in A377059.at n=50A378029
• Define f(x) = abs(1-1/x) and sequence {b(m)} such that b(m+1) = f(b(m)). a(n) is the number of initial values b(1) such that {b(m)}'s period has length n.at n=21A378853
• Semiperimeter of the unique primitive Pythagorean triple whose inradius is the n-th odd prime and whose short leg is an even number.at n=43A380301