

A050284


a(n) is the starting position of the first occurrence of a string of (at least) n '5's in the decimal expansion of Pi.


13




OFFSET

1,1


COMMENTS

This sequence has a(4) = a(5) = A096759(5) < A096759(4). As can be seen from a(1) = 4 (referring to the '5' in 3.1415...), position p means the string starts at the pth digit after the decimal point.  M. F. Hasler, Apr 13 2019


LINKS

Table of n, a(n) for n=1..10.
Eric Weisstein's World of Mathematics, Pi Digits.


CROSSREFS

Cf. A096759 (variant), ...A050283, A050285... (analog for digits ..., 4, 6, ...).
Sequence in context: A299136 A117897 A001425 * A096759 A299367 A299931
Adjacent sequences: A050281 A050282 A050283 * A050285 A050286 A050287


KEYWORD

nonn,base


AUTHOR

Eric W. Weisstein


EXTENSIONS

More terms from Colin Martin (cbmartin(AT)tpg.com.au), Mar 03 2002


STATUS

approved



