Number of equilateral triangles whose vertices (whether connected by lines or not) lie at intersection points resulting from drawing lines connecting every pair of vertices of a regular 3n-gon (and extending beyond the polygon).
A036403
Number of equilateral triangles whose vertices (whether connected by lines or not) lie at intersection points resulting from drawing lines connecting every pair of vertices of a regular 3n-gon (and extending beyond the polygon).
Terms
- a(0) =1a(1) =126a(2) =3927a(3) =33156a(4) =97115a(5) =641916a(6) =537607a(7) =4222280a(8) =1744695a(9) =20962830a(10) =4003241a(11) =42626916
External references
- oeis: A036403