72904

Appears in sequences

• a(n) = round(sqrt(a(n-2)^2 + a(n-1)^2)) with a(0) = 1 and a(1) = 2.at n=45A063827
• "Rounded hypotenuses": a(n) = round(sqrt(a(n-1)^2 + a(n-2)^2)), a(1)=1, a(2)=3.at n=44A104804
• Number of partitions of [n] such that the number of blocks of size k is a multiple or a divisor of k for every k.at n=10A374329