97668

Appears in sequences

• Number of compositions (ordered partitions) of n with designated summands.at n=15A091601
• Number of -3..3 arrays x(0..n-1) of n elements with zero sum, and adjacent elements not equal modulo three (with -1 modulo 3 = 2).at n=8A199904
• Number of arrays of median of three adjacent elements of some length 7 0..n array, with no adjacent equal elements in the latter.at n=10A229015
• Sum of the perimeters of the free polyominoes with n cells.at n=9A380287