1,1

Based on an idea of Leroy Quet who provided the first three terms.

Table of n, a(n) for n=1..9.

a(3)=23 because (1/(1-1/2))*(1/(1-1/3))*(1/(1-1/23)) < pi and (1/(1-1/2))*(1/(1-1/3))*(1/(1-1/22)) > Pi.

Sequence in context: A289550 A154553 A160341 * A225726 A076530 A238265

Adjacent sequences: A092385 A092386 A092387 * A092389 A092390 A092391

nonn

Hans Havermann, Mar 20 2004

approved