56525

Appears in sequences

• Hyper-Wiener index of a benzenoid consisting of a double-step spiral chain of n hexagons (n >= 2, s = 21; see the Gutman et al. reference).at n=10A193398
• Numbers k such that there is no prime p and index j > k such that A002182(j) = p * A002182(k).at n=17A309042