A155471 - OEIS

A155471

Primes n with distinct smallest digits of n and n-th prime.

2, 3, 5, 7, 17, 19, 23, 29, 37, 43, 47, 53, 59, 61, 67, 71, 79, 83, 89, 97, 101, 103, 107, 109, 127, 131, 137, 139, 149, 151, 163, 173, 179, 181, 197, 223, 227, 229, 233, 239, 257, 263, 269, 277, 283, 293, 311, 313, 317, 337, 347, 349, 353, 359, 367, 373, 379

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

LINKS

Table of n, a(n) for n=1..57.

EXAMPLE

If n=2 and 3=prime(2), then 2<3 and 2=a(1). If n=3 and 5=prime(3), then 3<5 and 3=a(2). If n=5 and 11=prime(5), then 5>1 and 5=a(3). If n=7 and 17=prime(7), then 7>1 and 7=a(4). If n=17 and 59=prime(17), then 1<5 and 17=a(5), etc.

CROSSREFS

Cf. A000027, A000040.

Sequence in context: A042994 A129692 A272441 * A158015 A042995 A108222

Adjacent sequences: A155468 A155469 A155470 * A155472 A155473 A155474

KEYWORD

nonn,base

AUTHOR

Juri-Stepan Gerasimov, Jan 23 2009

EXTENSIONS

Corrected (89 inserted) by R. J. Mathar, May 10 2010

STATUS

approved