login
This site is supported by donations to The OEIS Foundation.
Logo

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A101472 Numbers n such that the number n33 is prime. 3
2, 4, 7, 10, 14, 17, 19, 23, 26, 28, 34, 35, 37, 38, 41, 47, 49, 52, 53, 61, 67, 68, 73, 74, 79, 82, 89, 91, 94, 95, 97, 98, 101, 103, 104, 107, 116, 118, 119, 124, 130, 136, 139, 140, 145, 146, 152, 157, 160, 163, 164, 166, 170, 173, 181, 182, 184, 193, 194, 202 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

LINKS

Chris Caldwell The first 1,000 primes.

EXAMPLE

If n=2, then n33 = 233 (prime)

If n=34, then n33 = 3433 (prime)

If n=74, then n33 = 7433 (prime)

MATHEMATICA

fQ[n_] := PrimeQ[FromDigits[ Join[ IntegerDigits[n], {3, 3}]]]; Select[ Range[203], fQ[ # ] &] (from Robert G. Wilson v Feb 04 2005)

CROSSREFS

Sequence in context: A168112 A170894 A151986 * A087160 A107427 A130251

Adjacent sequences:  A101469 A101470 A101471 * A101473 A101474 A101475

KEYWORD

nonn,base

AUTHOR

Parthasarathy Nambi (PachaNambi(AT)yahoo.com), Jan 30 2005

EXTENSIONS

More terms from Robert G. Wilson v (rgwv(AT)rgwv.com), Feb 04 2005

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
Recent Additions | More pages | Superseeker | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement .

Last modified February 16 01:31 EST 2012. Contains 205860 sequences.