169909

Properties

Appears in sequences

• Number of n X 5 1..2 arrays containing at least one of each value, all equal values connected, rows considered as a single number in nondecreasing order, and columns considered as a single number in nondecreasing order.at n=25A166808
• Smallest prime p == 5 (mod 8) such that Q(sqrt(p)) has class number 2n+1.at n=18A355877
• Prime numbersat n=15488