57287

Properties

Appears in sequences

• Least m such that Phi-Composite-Harmonic series Sum_{k=1..m} 1/A000010(A002808(k)) >= n.at n=16A074470
• Number of zero-sum -n..n arrays of 7 elements with first through fourth differences also in -n..n.at n=7A201442
• Primes p such that p - m^2, m = 2, 4, 6, 8, are all (positive) primes.at n=23A246874
• Number of nX7 binary arrays with some element plus some horizontally or antidiagonally adjacent neighbor totalling two not more than once.at n=2A268994
• T(n,k)=Number of nXk binary arrays with some element plus some horizontally or antidiagonally adjacent neighbor totalling two not more than once.at n=38A268995
• Number of 3 X n binary arrays with some element plus some horizontally or antidiagonally adjacent neighbor totalling two not more than once.at n=6A268997
• Numbers k such that (9^k + 3^k + 1)/13 is prime.at n=12A374105
• Prime numbersat n=5811