101638

Appears in sequences

• Numbers k such that sopf(k) = sopf(k^2 - 1), where sopf(k) = A008472(k).at n=18A064019
• a(n) = floor(r^n) where r is the smallest Pisot number (real root r=1.3247179... of x^3-x-1).at n=41A112639