A276993 First 3-digit number to appear n times in the decimal expansion of Pi.

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

Offset

1,1

Comments

a(6) is the 3-digit number 019.

By the pigeonhole principle, it suffices to examine 1000n - 997 digits of Pi to find the n-th 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 3-digit 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