506521

Appears in sequences

• Numbers m such that the factorizations of m..m+6 have the same number of primes (including multiplicities).at n=5A123103
• Composite squarefree numbers k such that p+1 divides k-1 for any prime p dividing k.at n=26A225711
• Numbers n such that numbers n through n+6 are the product of exactly three (not necessarily distinct) primes.at n=4A259756
• Number of subsets of {1..n} with a subset summing to n + 1.at n=19A366130