189660

Appears in sequences

• a(n) = n*(n + 1)*(n^2 + n + 2)/4.at n=29A001621
• Coordination sequence for A_29 lattice.at n=2A035855
• Number of length n+4 0..7 arrays with no five consecutive terms having two times the sum of any three elements equal to three times the sum of the remaining two.at n=1A249000
• T(n,k)=Number of length n+4 0..k arrays with no five consecutive terms having two times the sum of any three elements equal to three times the sum of the remaining two.at n=29A249001
• Number of length 2+4 0..n arrays with no five consecutive terms having two times the sum of any three elements equal to three times the sum of the remaining two.at n=6A249003
• z-value of the lexicographically first solution (x,y,z) of 4/n = 1/x + 1/y + 1/z with 0 < x < y < z all integers, or 0 if there is no such solution. Corresponding x and y values are in A257839 and A257840.at n=57A257841