129248

Appears in sequences

• a(n) = T(n^3) - T(n^2), where T() are the triangular numbers (A000217).at n=8A085743
• Alternating row sums of triangle A134285, called s2(3)'.at n=10A134827
• Number of binary arrays indicating the locations of trailing edge maxima of a random length-n 0..6 array extended with zeros and convolved with 1,3,3,1.at n=24A222025