23320

Appears in sequences

• Theta series of odd 8-dimensional 5-modular lattice O(5).at n=32A029719
• Digits of sigma(n) end in phi(n).at n=14A067249
• Number of fixed convex polyominoes with n cells.at n=10A067675
• a(n) = 2*(n-1)*(n^2 + 1).at n=22A071233
• Treated as strings, phi(n) is a substring of sigma(n).at n=27A074452
• Number of rooted maps with n edges on the non-orientable surface of type 2.at n=5A214334
• Number of length n+3 0..4 arrays with no consecutive four elements summing to more than 2*4.at n=3A241960
• T(n,k)=Number of length n+3 0..k arrays with no consecutive four elements summing to more than 2*k.at n=24A241964
• Number of length 4+3 0..n arrays with no consecutive four elements summing to more than 2*n.at n=3A241967
• Triangle read by rows: T(n,k) = number of rooted maps with n edges on a nonorientable surface of genus k (1 <= k <= n).at n=13A267180
• Row 3 in rectangular array A292929.at n=26A294066
• Nonunitary weird numbers: numbers that are nonunitary abundant but not nonunitary pseudoperfect.at n=3A327948
• Maximum number of induced copies of the claw graph K_{1,3} in an n-node graph.at n=33A352666
• Number of integer compositions of n whose leaders of anti-runs are weakly decreasing.at n=16A374682