84160

Appears in sequences

• Expansion of exp(x/cos(x)).at n=9A009300
• Expansion of e.g.f. sin(x/cosh(x)) (odd powers only).at n=4A009563
• Length of A001388(n).at n=38A046639
• Numbers k such that 2^k - prime(k) is prime.at n=22A078583
• Numbers k such that either 2^k + prime(k) or 2^k - prime(k) is prime.at n=48A130640
• Number of nX2 arrays of occupancy after each element moves to some king-move neighbor, without move-in move-out left turns.at n=5A221600
• T(n,k)=Number of nXk arrays of occupancy after each element moves to some king-move neighbor, without move-in move-out left turns.at n=22A221602
• T(n,k)=Number of nXk arrays of occupancy after each element moves to some king-move neighbor, without move-in move-out left turns.at n=26A221602