Esimese n positiivse paaritu arvu summa on n².
Seda saame visualiseerida ruutudega.

n = 6 (slider from 1 to 16, step 1)
hs = Sequence(Segment[(0, k), (n, k)], k, 1, n)
sqs = Sequence(Polygon[(0; 0), (k, 0), 4], k, 1, n)
vs = Sequence(Segment[(k, 0), (k, n)], k, 1, n)
ts = Sequence(Text[(2 * k) - 1, (k, k) - 0.5], k, 1, n)
tekst2: "n² = " + (sqs(n)) + ""