login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A098320 a(1)=0; for i>=1, a(i+1)=position of first occurrence of a(i) in decimal expansion of 1/e. 11

%I #7 Jul 12 2015 19:49:16

%S 0,27,88,308,267,922,811,40,150,173,555,1751,3389,5859,10579,227865,

%T 560966,1382684,12331649,118447869

%N a(1)=0; for i>=1, a(i+1)=position of first occurrence of a(i) in decimal expansion of 1/e.

%C Recurrence sequence based on positions of digits in decimal places of 1/e.

%e So for example, a(2)=27 because 27th digit of 1/e after decimal point is 0.

%e a(3)=88 because 88th decimal digit of 1/e is where 27 appears,

%e a(4)=308 because 308th to 309th decimal digits of 1/e form "88" and so on.

%Y Cf. A097614 for the analogous recurrence sequence for Pi, A098266 for e recurrence, A098289 for log(2) recurrence, A098290 for Zeta(3) recurrence, A098319 for 1/Pi recurrence. See A068985 for digits of 1/e.

%K easy,nonn,base

%O 0,2

%A Mark Hudson (mrmarkhudson(AT)hotmail.com), Sep 03 2004

%E More terms from Ben Ross (bmr180(AT)psu.edu), Feb 01 2006

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

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 24 20:08 EDT 2024. Contains 371963 sequences. (Running on oeis4.)