31400

Appears in sequences

• Expansion of (theta_3(z)*theta_3(11z) + theta_2(z)*theta_2(11z))^4.at n=25A028612
• Number of triangles a queen can make (starting anywhere) on an n X n board.at n=25A030117
• Number of (directed) Hamiltonian paths in the n-Möbius ladder graph.at n=22A137883
• a(n) = n^3 + (n+2)^3.at n=24A153976
• Number of concave kites (darts or arrowheads) on an n X n grid (or geoboard).at n=10A173502
• Second elementary symmetric function of the first n terms of (1,1,2,2,3,3,4,4,...).at n=29A203246
• Number of (w,x,y,z) with all terms in {1,...,n} and w+x<y+z.at n=16A212523
• Smallest number requiring n steps to reach a prime under the "add a digit" process described in A241180.at n=11A241182
• Number of length 2+3 0..n arrays with some disjoint pairs in every consecutive four terms having the same sum.at n=18A247534
• a(n) = n*(n+1)*(13*n+2)/6.at n=24A257093
• Smallest number requiring n steps to reach a prime under the "add a digit" process described in A241181.at n=12A336382