The number of vertices on a 2 by 1 ellipse formed by the straight line segments mutually connecting all points formed by dividing the ellipse into 2n equal angle sectors from its origin.
A341762
The number of vertices on a 2 by 1 ellipse formed by the straight line segments mutually connecting all points formed by dividing the ellipse into 2n equal angle sectors from its origin.
Terms
- a(0) =2a(1) =5a(2) =19a(3) =65a(4) =195a(5) =461a(6) =971a(7) =1737a(8) =2995a(9) =4617a(10) =7203a(11) =10385a(12) =14779a(13) =20125a(14) =27155a(15) =35481a(16) =46051a(17) =58277a(18) =73395a(19) =90323a(20) =111403a(21) =134765a(22) =162539a(23) =193385a(24) =229515a(25) =269301a(26) =315331a(27) =365617a(28) =423195a(29) =485617
External references
- oeis: A341762