

A276993


First 3digit number to appear n times in the decimal expansion of Pi.


8



314, 592, 446, 117, 105, 19, 381, 279, 609, 609, 848, 848, 654, 654, 654, 654, 19, 19, 965, 965, 965, 965, 19, 19, 19, 494, 564, 390, 390, 390, 390, 390, 682, 682, 390, 346, 390, 390, 390, 390, 390, 390, 346, 346, 346, 99, 201, 201, 201, 201, 201, 201, 201
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OFFSET

1,1


COMMENTS

a(6) is the 3digit number 019.
By the pigeonhole principle, it suffices to examine 1000n  997 digits of Pi to find the nth term; on average 1000n  O(sqrt n) will suffice. Do each of 0..999 appear in this sequence? Which appears last?  Charles R Greathouse IV, Sep 26 2016


LINKS

Alois P. Heinz, Table of n, a(n) for n = 1..1000


EXAMPLE

a(2) = 592 because 592 is the first 3digit number to appear 2 times in the decimal expansion of Pi = 3.141(592)653589793238462643383279502884197169399375105820974944(592)...


CROSSREFS

Cf. A000796, A096567, A276686, A276992, A277171, A290643, A291599, A291600.
Sequence in context: A186396 A107117 A161963 * A205618 A257868 A257867
Adjacent sequences: A276990 A276991 A276992 * A276994 A276995 A276996


KEYWORD

nonn,base


AUTHOR

Bobby Jacobs, Sep 24 2016


EXTENSIONS

More terms from Alois P. Heinz, Oct 02 2016


STATUS

approved



