68749

Properties

Appears in sequences

• Enumeration of partial sums of 1 + [1,2] + [2,3] + [1,2] + [2,3] + ...at n=33A089640
• Primes p such that none of p-2, p-1, p+1, and p+2 is squarefree.at n=28A153215
• Prime numbers that have a decagonal (10 sides) Voronoi cell in the Voronoi diagram of the Ulam prime spiral.at n=15A257748
• The five digits of a(n) and their four successive absolute first differences are all distinct.at n=43A365257
• Prime numbersat n=6834