A090853 - cp's OEIS frontend

A090853 a(n) is the least positive integer such that the arithmetic-geometric mean satisfies: floor( agm(a(n),a(n-2)) ) = a(n-1) for n>2, with a(1)=1, a(2)=2.

%I A090853 #8 Jun 06 2016 22:23:00
%S A090853 1,2,4,7,12,19,28,40,55,73,94,118,145,176,211,250,293,340,391,446,505,
%T A090853 568,635,706,781,860,943,1030,1121,1216,1315,1418,1525,1637,1754,1876,
%U A090853 2003,2135,2272,2414,2561,2713,2870,3032,3199,3371,3548,3730,3917,4109
%N A090853 a(n) is the least positive integer such that the arithmetic-geometric mean satisfies: floor( agm(a(n),a(n-2)) ) = a(n-1) for n>2, with a(1)=1, a(2)=2.
%Y A090853 Cf. A090852, A090854, A090855.
%K A090853 nonn
%O A090853 1,2
%A A090853 _Paul D. Hanna_, Dec 10 2003

cp's OEIS Frontend

A090853 a(n) is the least positive integer such that the arithmetic-geometric mean satisfies: floor( agm(a(n),a(n-2)) ) = a(n-1) for n>2, with a(1)=1, a(2)=2.