51380224

Appears in sequences

• Smallest number beginning with 5 and having exactly n prime divisors counted with multiplicity.at n=21A106425
• Number of n X n 0..3 arrays with every element equal to a diagonal or antidiagonal reflection.at n=3A209588
• T(n,k)=Number of n X n 0..k arrays with every element equal to a diagonal or antidiagonal reflection.at n=18A209593
• Number of 4X4 0..n arrays with every element equal to a diagonal or antidiagonal reflection.at n=2A209595
• The number of descents over all functions f:{1,2,...,n}->{1,2,...,n}.at n=7A226998
• Triangle T(n,m) for the number of ways to put n stones into an m X n square grid such that each of the m rows contains at least one stone.at n=34A259051
• a(n) = Product_{k=0..n} (k^3 + (n-k)^3).at n=4A323541
• Total number of ones in runs of 1s of length <=2 over all binary strings of length n.at n=23A386270