51909

Appears in sequences

• Number of permutations of [1,2,...,n] with n-1 inversions.at n=10A000707
• Concatenation of the 5 prime factors of composite a(n) is a palindrome.at n=6A046454
• Numbers n such that A001414(n) = sum of composites from the smallest prime factor of n to the largest prime factor of n.at n=25A074053
• a(1)=a(2)=a(3)=1; for n > 3, a(n) = lcm(a(n-1) + a(n-2), a(n-3)).at n=10A128485
• Number of reduced words of length n in the Weyl group A_10.at n=10A161458