56783

Properties

Appears in sequences

• Primes of the form k^2 + k + 55661, with k >= 0.at n=25A116206
• Primes of the form (p^2 - 3)/2 where p is also prime.at n=31A165635
• Number of n X 6 0..1 arrays with rows and antidiagonals unimodal and columns nondecreasing.at n=8A224144
• Primes whose hexadecimal representation contains only consonants.at n=38A238090
• a(0) = 0, and for n > 0, (a(n)) gives the indices n for which d(n) < d(k) for k < n, where d is the difference sequence of (cos k + sin k).at n=13A299640
• Prime numbersat n=5758