Une période unique fait résonner toutes les fractions de n/41 en base 7.  

Le microscope numérique permet alors d'en observer le graphe. 

1/41=0,0112363262135202250565543034045314644161...

2/41=0,0225056554303404531464416101123632621352...

3/41=0,0340453146441610112363262135202250565543...

4/41=0,0453146441610112363262135202250565543034...

5/41=0,0565543034045314644161011236326213520225...

6/41=0,1011236326213520225056554303404531464416...

7/41=0,1123632621352022505655430340453146441610...

8/41=0,1236326213520225056554303404531464416101...

9/41=0,1352022505655430340453146441610112363262...

10/41=0,1464416101123632621352022505655430340453...

11/41=0,1610112363262135202250565543034045314644...

12/41=0,2022505655430340453146441610112363262135...

13/41=0,2135202250565543034045314644161011236326...

14/41=0,2250565543034045314644161011236326213520...

15/41=0,2363262135202250565543034045314644161011...

16/41=0,2505655430340453146441610112363262135202...

17/41=0,2621352022505655430340453146441610112363...

18/41=0,3034045314644161011236326213520225056554...

19/41=0,3146441610112363262135202250565543034045...

20/41=0,3262135202250565543034045314644161011236...

21/41=0,3404531464416101123632621352022505655430...

22/41=0,3520225056554303404531464416101123632621...

23/41=0,3632621352022505655430340453146441610112...

24/41=0,4045314644161011236326213520225056554303...

25/41=0,4161011236326213520225056554303404531464...

26/41=0,4303404531464416101123632621352022505655...

27/41=0,4416101123632621352022505655430340453146...

28/41=0,4531464416101123632621352022505655430340...

29/41=0,4644161011236326213520225056554303404531...

30/41=0,5056554303404531464416101123632621352022...

31/41=0,5202250565543034045314644161011236326213...

32/41=0,5314644161011236326213520225056554303404...

33/41=0,5430340453146441610112363262135202250565...

34/41=0,5543034045314644161011236326213520225056...

35/41=0,5655430340453146441610112363262135202250...

36/41=0,6101123632621352022505655430340453146441...

37/41=0,6213520225056554303404531464416101123632...

38/41=0,6326213520225056554303404531464416101123...

39/41=0,6441610112363262135202250565543034045314...

40/41=0,6554303404531464416101123632621352022505...