61997

Appears in sequences

• Number of permutations of (1,...,n) having n-3 inversions (n>=3).at n=9A001893
• Quasi-Carmichael numbers to base 5: squarefree composites n such that (n,2*3) = 1 and prime p|n ==> p-5|n-5.at n=11A029558
• Number of reduced words of length n in the Weyl group A_11.at n=9A161459
• Composite squarefree numbers n such that p(i)-3 divides n+3, where p(i) are the prime factors of n.at n=9A225703