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A158625 Lower limit of backward value of 5^n. 3
5, 2, 1, 3, 0, 2, 3, 3, 0, 4, 3, 1, 1, 3, 1, 1, 2, 4, 2, 1, 0, 3, 1, 3, 3, 0, 0, 0, 2, 3, 1, 4, 1, 0, 2, 1, 0, 3, 4, 3, 0, 2 (list; constant; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Digits are all in {0,1,2,3,4} after first term.

The upper limit is A158624, 0.5265679578796997657885576975995789586775656...

LINKS

Table of n, a(n) for n=1..42.

EXAMPLE

5^3 = 125 so the backward value is 0.521, 5^10 = 9765625, so backward value is 0.5265679. The lower limit of all values is a constant, which appears to be 0.521302330431131124210313300023141021034302...

PROG

(Python)

# lower limit of backward sequence of 5^n

a, i=5, 0; x=a

while 1:

     i+=1; print x, ', ',

     for j in range(5):

         if (a+j*10**i)%(5**(i+1))==0: x=j; a+=j*10**i

# Cezary Glowacz, Mar 11 2017

CROSSREFS

Cf. A158624, A004094, A023415, A145679.

Sequence in context: A243258 A275704 A038631 * A133615 A136161 A197383

Adjacent sequences:  A158622 A158623 A158624 * A158626 A158627 A158628

KEYWORD

cons,nonn,nice,base,more

AUTHOR

Simon Plouffe, Mar 23 2009

STATUS

approved

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Last modified November 17 19:40 EST 2017. Contains 294834 sequences.