A069100 n-th n-digit prime number.

2, 13, 107, 1021, 10061, 100069, 1000117, 10000189, 100000193, 1000000181, 10000000259, 100000000193, 1000000000303, 10000000000411, 100000000000487, 1000000000000513, 10000000000000931, 100000000000000591, 1000000000000000861, 10000000000000000667

Offset

1,1

Links

Eduard Roure Perdices, Table of n, a(n) for n = 1..1000

Mathematica

a[n_] := NextPrime[10^(n - 1), n]; (* Eduard Roure Perdices, May 17 2021 *)

Prog

(PARI) a(n)=prime(primepi(10^(n-1))+n) \\ Franklin T. Adams-Watters, Mar 07 2014
(Python)
from sympy import nextprime
def a(n):  return nextprime(10**(n-1), ith=n)
print([a(n) for n in range(1, 21)]) # Michael S. Branicky, Jun 16 2021

Crossrefs

Cf. A003617, A107108, A107109.

Sequence in context: A371574 A127746 A199124 * A031991 A371581 A264621

Adjacent sequences: A069097 A069098 A069099 * A069101 A069102 A069103

Keyword

nonn,base

Author

Darrell Minor, Apr 05 2002

Extensions

More terms from Vladeta Jovovic, Apr 07 2002

Extended by Eduard Roure Perdices, May 17 2021

Status

approved