A092389 a(n) is the smallest positive integer such that the product of all 1/(1-1/a(n)) is less than e, the base of natural logarithms.

2, 4, 53, 8161, 95179274, 201183145328633251, 185888177135331365526661328509496304, 999276311297022575258979594170618811616720633706868379409096128081691360

Offset

1,1

Comments

Based on an idea of Leroy Quet.

Links

Table of n, a(n) for n=1..8.

Example

a(3)=53 because (1/(1-1/2))*(1/(1-1/4))*(1/(1-1/53)) < e and (1/(1-1/2))*(1/(1-1/4))*(1/(1-1/52)) > e.

Crossrefs

Sequence in context: A205616 A115587 A018337 * A341733 A005274 A121234

Adjacent sequences: A092386 A092387 A092388 * A092390 A092391 A092392

Keyword

nonn

Author

Hans Havermann, Mar 21 2004

Status

approved