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

Author

Bobby Jacobs, Sep 24 2016

Keywords

• nonn
• base

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

Examples

			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)...
		

Links

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

Crossrefs

Cf. A000796, A096567, A276686, A276992, A277171, A290643, A291599, A291600.

Extensions

More terms from Alois P. Heinz, Oct 02 2016