Numerical distance between m-th and (n+m)-th circles in a loxodromic sequence of circles in which each 4 consecutive circles touch.
A045821
Numerical distance between m-th and (n+m)-th circles in a loxodromic sequence of circles in which each 4 consecutive circles touch.
Terms
- a(0) =-1a(1) =1a(2) =1a(3) =1a(4) =7a(5) =17a(6) =49a(7) =145a(8) =415a(9) =1201a(10) =3473a(11) =10033a(12) =28999a(13) =83809a(14) =242209a(15) =700001a(16) =2023039a(17) =5846689a(18) =16897249a(19) =48833953a(20) =141132743a(21) =407881201a(22) =1178798545a(23) =3406791025a(24) =9845808799a(25) =28454915537a(26) =82236232177a(27) =237667122001
External references
- oeis: A045821