69573

Appears in sequences

• Number of -5..5 arrays of n elements with first, second and third differences also in -5..5.at n=5A202121
• T(n,k) is the number of -k..k arrays of n elements with first, second and third differences also in -k..k.at n=50A202124
• Number of -n..n arrays of 6 elements with first, second and third differences also in -n..n.at n=4A202127
• Number of regular tetrahedra in an n-node-per-edge tetrahedral grid.at n=27A269747
• Total number of isomers (nonisomorphic systems) of unbranched tri-4-catafusenes as a function of the number of hexagons (see Cyvin et al. (1996) for precise definition).at n=8A323941