3 Jul
2016
3 Jul
'16
11:55 p.m.
If a(n)=3*a(n-1)-a(n-2), then (a (n+1) - a (n))^2 = a (n)*(n + 1) - 1. How to prove/disprove it? Thx, Zak https://oeis.org/A001519