The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 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. 1
 2, 4, 53, 8161, 95179274, 201183145328633251, 185888177135331365526661328509496304, 999276311297022575258979594170618811616720633706868379409096128081691360 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Based on an idea of Leroy Quet. LINKS 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

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified June 23 16:47 EDT 2021. Contains 345402 sequences. (Running on oeis4.)