Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A155476
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A155476 Primes n with identical largest digits of n and n-th prime. +0
1
7, 29, 37, 73, 97, 109, 137, 139, 149, 181, 239, 271, 281, 283, 293, 307, 331, 541, 571, 613, 691, 719, 751, 821, 823, 881, 883, 907, 919, 929, 941, 983, 991, 1009, 1013, 1019, 1153, 1171, 1193 (list; graph; listen)
OFFSET

1,1

EXAMPLE

If n=7=prime and 17=prime(7), then 7=7>1 and 7=a(1). If n=29=prime and 109=prime(29), then 2<9=9>1>0 and 29=a(2). If n=37=prime and 157=prime(37), then 3<7=7>5>1 and 37=a(3), etc.

CROSSREFS

Cf. A000027, A000040.

Sequence in context: A107923 A096450 A156124 this_sequence A166970 A075583 A103603

Adjacent sequences: A155473 A155474 A155475 this_sequence A155477 A155478 A155479

KEYWORD

nonn,base

AUTHOR

Juri-Stepan Gerasimov (2stepan(AT)rambler.ru), Jan 23 2009

page 1

Search completed in 0.002 seconds

Lookup | Welcome | Find friends | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
More pages | Superseeker | Maintained by N. J. A. Sloane (njas@research.att.com)

Last modified December 1 19:22 EST 2009. Contains 167811 sequences.


AT&T Labs Research