93971

Properties

Appears in sequences

• a(n) = floor( binomial(n,7)/7 ).at n=26A011853
• Emirps using each of the digits 1, 3, 7, 9 at least once, but no others.at n=16A158917
• a(n) = 1/7*( binomial(n,7) - floor(n/7) ).at n=18A215053
• Emirps whose binary conversion remains emirp when read in decimal.at n=22A226972
• A331757(n)/2.at n=27A331758
• Prime numbersat n=9067