195888domain: NAppears in sequencesa(n) = Fibonacci(n)*A000143(n) for n>=1 with a(0)=1, where A000143(n) is the number of ways of writing n as a sum of 8 squares.at n=8A205964Number of triangular regions in a "frame" of size n X n (see Comments in A331776 for definition), divided by 4.at n=38A332595