Number of "polyhes" of order n: a polyhe of order n is obtained by taking a polyhex made of n hexagons (A000228); cutting each of the n hexagons along a diameter and throwing away half that hexagon, in such a way that the remaining figure (made of n half-hexagons) is connected.
A057712
Number of "polyhes" of order n: a polyhe of order n is obtained by taking a polyhex made of n hexagons (A000228); cutting each of the n hexagons along a diameter and throwing away half that hexagon, in such a way that the remaining figure (made of n half-hexagons) is connected.
Terms
- a(0) =1a(1) =4a(2) =13a(3) =60a(4) =276a(5) =1416a(6) =7201a(7) =37972a(8) =201989a(9) =1089815a(10) =5929666a(11) =32533673a(12) =179657435
External references
- oeis: A057712