29953729domain: NAppears in sequencesSquares of A001076.at n=7A099279a(n) = a(n-3) + A001654(n-1) with a(0)=0, a(1)=0 and a(2)=1.at n=20A115730Terms of A227891 of the form (p*q)^2, where p <= q are odious primes (A027697).at n=20A231253a(n) is the denominator of the square of the n-th Lagrange number.at n=21A382099