24345

Appears in sequences

• a(n) = T(n,n-3), where T is the array in A026374.at n=34A026382
• a(n) = T(n,n-3), where T is the array in A026386.at n=34A026394
• Numbers n such that 8*10^n + 9 is prime.at n=24A103070
• Number of ways to place 2 nonattacking kings on an n X n cylindrical chessboard.at n=14A194650
• Majority value maps: number of nX3 binary arrays indicating the locations of corresponding elements equal to at least half of their horizontal, vertical and antidiagonal neighbors in a random 0..2 nX3 array.at n=4A220366
• Majority value maps: number of nX5 binary arrays indicating the locations of corresponding elements equal to at least half of their horizontal, vertical and antidiagonal neighbors in a random 0..2 nX5 array.at n=2A220368
• T(n,k)=Majority value maps: number of nXk binary arrays indicating the locations of corresponding elements equal to at least half of their horizontal, vertical and antidiagonal neighbors in a random 0..2 nXk array.at n=23A220369
• T(n,k)=Majority value maps: number of nXk binary arrays indicating the locations of corresponding elements equal to at least half of their horizontal, vertical and antidiagonal neighbors in a random 0..2 nXk array.at n=25A220369
• Number of Halin graphs on n unlabeled nodes.at n=18A346779