68201

Appears in sequences

• Partial sums of sequence A177342.at n=20A178073
• 1/4 the number of (n+1) X 2 0..3 arrays with every 2 X 2 subblock having one or four distinct clockwise edge differences.at n=4A209851
• 1/4 the number of (n+1)X6 0..3 arrays with every 2X2 subblock having one or four distinct clockwise edge differences.at n=0A209855
• T(n,k)=1/4 the number of (n+1)X(k+1) 0..3 arrays with every 2X2 subblock having one or four distinct clockwise edge differences.at n=10A209858
• T(n,k)=1/4 the number of (n+1)X(k+1) 0..3 arrays with every 2X2 subblock having one or four distinct clockwise edge differences.at n=14A209858
• Number of non-equivalent ways to choose two points in an equilateral triangle grid of side n.at n=41A227327
• Number of compositions of n where the difference between largest and smallest parts equals seven.at n=15A323124
• Number of labeled cyclic chord diagrams with n chords such that the minimal chord length equals seven.at n=3A324451
• a(0) = 1; a(n) = Sum_{k=1..n} binomial(n,k) * Bell(k-1) * a(n-k).at n=7A335849