97117

Properties

Appears in sequences

• Numbers k such that the "inventory" A063850 of k is a perfect square.at n=35A079465
• Primes p such that p's set of distinct digits is {1,7,9}.at n=34A108384
• Primes of form: sum of prime 5-tuples (A022007).at n=3A144940
• Number of n X n binary arrays symmetric under 180 degree rotation with all ones connected only in a 0100-0100-1111 pattern in any orientation.at n=10A146577
• The number of distinct (up to unitary similarity) *-subalgebras of the n X n complex matrices.at n=22A215925
• Primes such that concatenation of two adjacent terms and two adjacent digits is also prime.at n=39A224929
• a(n) = Sum_{k=1..n} (-1)^(k+1) * floor(n/k)^5.at n=9A344723
• Prime numbersat n=9345