260609

Properties

Appears in sequences

• Good sequence of increments for Shell sort (best on big values).at n=15A033622
• Denominators of continued fraction convergents to sqrt(254).at n=9A041477
• Let S(n)=sigma(|n|)/2-n; sequence gives numbers n such that S(S(S(S(n))))=n. May be called {1,2}-sociable number of orders 1 or 2 or 4.at n=5A114529
• A 9th-order Fibonacci sequence.at n=24A127193
• Hilltop maps: number of nX2 binary arrays indicating the locations of corresponding elements not exceeded by any horizontal or vertical neighbor in a random 0..4 nX2 array.at n=8A218282
• Primes in the 9th-order Fibonacci numbers A127193.at n=2A256499
• Prime numbersat n=22884