342392

Appears in sequences

• Sets with a congruence property.at n=21A002703
• Coordination sequence for squashed {D_5}* lattice, perhaps the smallest example of a "non-superficial" lattice.at n=18A010024
• a(1) = 1, a(n) = (n^n-n)/(n-1)^2 for n >= 2.at n=7A058128
• a(n) = floor(2^n/(n^2)).at n=27A060505
• Moebius inversion of a sequence related to powers of 2.at n=24A178738
• a(n) = floor((-1 + 2^n)/(1 + 2*n)).at n=23A191630
• a(n) = floor((1 + 2^n)/(1 + 2*n)).at n=23A191633
• a(n) = floor((1 + 4^n)/(1 + 4*n)).at n=11A191641