Count of interior bounded regions in a regular 2n-sided polygon dissected by all diagonals parallel to sides.

A165217

Count of interior bounded regions in a regular 2n-sided polygon dissected by all diagonals parallel to sides.

Terms

    a(0) =6a(1) =25a(2) =50a(3) =145a(4) =224a(5) =497a(6) =630a(7) =1281a(8) =1606a(9) =2761a(10) =3302a(11) =5265a(12) =5940a(13) =9185a(14) =10472a(15) =14977a(16) =16834a(17) =23161a(18) =25284a(19) =34321a(20) =37720a(21) =49105a(22) =53500a(23) =68225a(24) =73278a(25) =92457a(26) =99470a(27) =122641a(28) =131316a(29) =159681

External references