Rounded down ratio of area of a unit circle and one of the circles inscribed between a regular n-gon and a circumscribed unit circle.

A244094

Rounded down ratio of area of a unit circle and one of the circles inscribed between a regular n-gon and a circumscribed unit circle.

Terms

    a(0) =16a(1) =46a(2) =109a(3) =222a(4) =407a(5) =690a(6) =1099a(7) =1669a(8) =2437a(9) =3445a(10) =4737a(11) =6363a(12) =8376a(13) =10834a(14) =13797a(15) =17330a(16) =21503a(17) =26389a(18) =32064a(19) =38608a(20) =46108a(21) =54651a(22) =64331a(23) =75243a(24) =87489a(25) =101172a(26) =116402a(27) =133290a(28) =151953a(29) =172511

External references