

A244601


Position of first occurrence of n consecutive equal digits in the decimal expansion of e starting after the decimal point.


7




OFFSET

1,2


COMMENTS

Position 31 is occupied by the first of two consecutive 6's. Position 47 is occupied by the first of three consecutive 9's. Position 723 is occupied by the first of four consecutive 8's.


LINKS

Table of n, a(n) for n=1..10.
e digit search engine


EXAMPLE

Decimal expansion of e:
2.718281828459045235360287471352662497757247093699959574966967627724..


MATHEMATICA

e = Rest[First[RealDigits[E, 10, 2000000]]];
A244601 = ConstantArray[0, 8];
For[i = 1, i <= Length[e], i++,
t = e[[i]]; c = 1;
While[e[[i + c]] == t, c++];
If[A244601[[c]] == 0, A244601[[c]] = i; i = i + c  1; Continue[]]
]; A244601 (* Robert Price, Sep 07 2019 *)


CROSSREFS

Cf. A001113. Resulting repdigits are A244602.
Sequence in context: A127576 A139896 A289839 * A004224 A194129 A288291
Adjacent sequences: A244598 A244599 A244600 * A244602 A244603 A244604


KEYWORD

nonn,base,more


AUTHOR

Felix Fröhlich, Jul 01 2014


EXTENSIONS

a(5)(8) from Jens Kruse Andersen, Jul 20 2014
a(9)(10) from Felix Fröhlich, Aug 26 2014
Prepended a(1), Felix Fröhlich, Aug 31 2014


STATUS

approved



