A076628 - cp's OEIS frontend

A076628 a(n) = 2^(2^(n-1))*b(n) where b(1) = 1/2 and b(n+1) = b(n) - b(n)^2.

n	a(n)
1	1
2	1
3	3
4	39
5	8463
6	483008799
7	1841209495473815103
8	30574267942866411492610617989187955839
9	9469098402231365955845075782127013884605836706970528486326625808482327697663

[1, 1, 3, 39, 8463, 483008799, 1841209495473815103, 30574267942866411492610617989187955839, 9469098402231365955845075782127013884605836706970528486326625808482327697663]

cp's OEIS Frontend

A076628 a(n) = 2^(2^(n-1))*b(n) where b(1) = 1/2 and b(n+1) = b(n) - b(n)^2.

Table of values

List of values