A080985 - cp's OEIS frontend

A080985 Define b by b(1) = 1 and for n>1, b(n) = b(n-1)+1/(2+1/b(n-1)); sequence gives denominator of b(n).

n	a(n)
1	1
2	3
3	33
4	4785
5	118289985
6	83574429584465985
7	47533348097639173195113266868291585
8	17303590888755815609063515462865866934559547198082397287546077959536385

[1, 3, 33, 4785, 118289985, 83574429584465985, 47533348097639173195113266868291585, 17303590888755815609063515462865866934559547198082397287546077959536385]

cp's OEIS Frontend

A080985 Define b by b(1) = 1 and for n>1, b(n) = b(n-1)+1/(2+1/b(n-1)); sequence gives denominator of b(n).

Table of values

List of values