174636

Appears in sequences

• The hyper-Wiener index of a benzenoid consisting of a straight-line chain of n hexagons (s=2; see the Gutman et al. reference).at n=14A193390
• Number of (w,x,y,z) with all terms in {1,...,n} and w<=|x-y|+|y-z|.at n=23A212673
• a(n) is the least number k such that A018804(k)/k = n.at n=37A353264