24790

Appears in sequences

• Number of polyhexes with n cells that tile the plane.at n=10A070766
• Triangle (read by rows) in which the number of entries in a row only increases by 1 every other row, the first column and the 'diagonal' is set to all 1's and a(i,j) = a(i-1,j) + a(i-1,j-1) + a(i-2,j-1) + a(i-3,j-1) for other entries.at n=61A096966
• Triangle T(n, k) = T(n-1, k) + T(n, k-1) + T(n-1, k-1) + T(n-2, k-1), with T(n, 1) = T(n, n) = 1, read by rows.at n=50A144447
• Number of cliques in the n-triangular honeycomb queen graph.at n=11A289864