Coordination sequence for (2,4,8) tiling of hyperbolic plane.

Terms

a(0) =1a(1) =3a(2) =5a(3) =8a(4) =12a(5) =17a(6) =25a(7) =37a(8) =53a(9) =75a(10) =107a(11) =152a(12) =216a(13) =309a(14) =441a(15) =628a(16) =895a(17) =1275a(18) =1816a(19) =2588a(20) =3689a(21) =5257a(22) =7491a(23) =10675a(24) =15211a(25) =21675a(26) =30888a(27) =44016a(28) =62723a(29) =89381