94321

Properties

Appears in sequences

• Define f(n,k) = floor[n/k] and a(n) = right concatenation of f(n,k) for k = 1 to int[(n+1)/2] or until one arrives at a 1.at n=8A068671
• Primes in A068671.at n=5A068672
• Class 7+ primes.at n=25A081635
• a(n+1) = 11*a(n) - a(n-1) - 3, a(0)=a(1)=1.at n=6A092444
• Largest prime obtained by concatenation of parts of a distinct partition of n. 0 if no such number exist.at n=18A110456
• Primes p such that the period of the continued fraction of (1-sqrt(p))/2 has length 3 and p is not of the form k^2+1.at n=32A188136
• Number of n X 2 0..3 arrays with no element equal to zero plus the sum of elements to its left or one plus the sum of elements above it or one plus the sum of the elements diagonally to its northwest or one plus the sum of the elements antidiagonally to its northeast, modulo 4.at n=50A239594
• Primes of form n^2 + 1296.at n=29A256834
• Primes p such that p = q^2 + 8*r^2 where q and r are also primes.at n=40A260556
• Magic numbers of anti-Mackay icosahedra.at n=28A277131
• G.f. = g(f(x)), where f(x) = g.f. of Fibonacci sequence A000045 and g(x) = g.f. of Jacobsthal sequence A001045.at n=11A322573
• Prime numbers where digit values decrease while alternating parity.at n=21A381158
• Numbers k such that (49^k + 2^k)/51 is prime.at n=4A382866
• Prime numbersat n=9096