233288

Appears in sequences

• Values of n^2 - 1 resulting from A050795.at n=32A050799
• Numbers n such that core(n)=floor(sqrt(n)), where core(x)=A007913(x) is the squarefree part of x and floor(sqrt(x))=A000196(x).at n=28A069186
• a(n) = (n^2-1)^2-1.at n=22A178392
• Number of ways to place 3 nonattacking kings on an n X n toroidal board.at n=10A179404
• Numbers k such that tau(k+1) - tau(k) = 3, where tau(k) = the number of divisors of k (A000005).at n=29A230653
• Numbers k such that k and k+1 are both half-Zumkeller numbers (A246198).at n=24A331371