A191421 Prime numbers that contain the string "2011" in their decimal expansion.

2011, 12011, 20113, 20117, 62011, 122011, 162011, 182011, 201101, 201107, 201119, 201121, 201139, 201151, 201163, 201167, 201193, 222011, 272011, 282011, 320113, 320119, 332011, 392011, 512011, 520111, 552011, 582011, 612011, 620111, 620117

Offset

1,1

Comments

Curious prime numbers, which contain string the "2011", referring to the current year.

Links

Klaus Brockhaus, Table of n, a(n) for n = 1..2000

Rafael Parra Machío, Propiedades del 2011: Un paseo a través de los números primos, p. 2 (Spanish)

Formula

a(n) ~ n log n. - Charles R Greathouse IV, Jun 02 2011

Prog

(Magma) [ p: p in PrimesInInterval(2011, 1000000) | IntegerToString(2011) in IntegerToString(p) ]; // Klaus Brockhaus, Jun 02 2011

Crossrefs

Sequence in context: A162242 A249955 A020433 * A250836 A076666 A323470

Adjacent sequences: A191418 A191419 A191420 * A191422 A191423 A191424

Keyword

nonn,base

Author

Rafael Parra Machio, Jun 02 2011

Status

approved