33813

Appears in sequences

• a(n) = floor(a(n-1)*(Pi-1)); a(1) = 1.at n=14A063457
• Numbers n such that sum of primes dividing n (with repetition) is equal to the largest prime factor of n+1.at n=28A071863
• Numbers n such that n^2 is divisible by the sum of the distinct prime divisors of n^2 + 1.at n=21A196219
• The Collatz (3x+1) iteration in A220145 converted to decimal.at n=22A221468
• Number of extended RNA secondary structures of size n according to the zu Siederdissen et al. (2011) model.at n=10A226510
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 553", based on the 5-celled von Neumann neighborhood.at n=32A272848
• Numbers k such that k = x + y, k' = x' + y' and k'' = x'' + y'', where k' and k'' are the first and second arithmetic derivatives of k.at n=11A293252
• Number of parts in all partitions of n in which no part occurs more than five times.at n=30A320608
• a(n) is the number of primes between (prime(n))^3 and (prime(n+1))^3.at n=38A365767
• Terms k of A228058 for which A048146(k)+A162296(k) >= 2*k, where A048146 is the sum of non-unitary divisors, and A162296 is the sum of divisors that have a square factor.at n=46A389219