439781

Properties

Appears in sequences

• Primes as they occur for the first time as factors of terms of A173426 = concatenation(1,2,...,n,n-1,...,1).at n=22A260597
• Number of 5Xn 0..1 arrays with every element equal to 0, 1 or 3 horizontally or antidiagonally adjacent elements, with upper left element zero.at n=8A301888
• Prime numbersat n=36923