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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A119667 Squares that contain multi-digit prime substrings. 1
196, 289, 361, 441, 529, 676, 729, 841, 961, 1024, 1089, 1156, 1296, 1369, 1521, 1764, 1936, 2025, 2116, 2304, 2401, 2601, 2809, 2916, 3025, 3136, 3721, 4096, 4356, 4489, 4761, 5041, 5329, 5476, 5776, 5929, 6241, 6561, 6724, 6889, 7056, 7396, 7569, 7921 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

LINKS

Harvey P. Dale, Table of n, a(n) for n = 0..1000

EXAMPLE

196 contains 19 - a prime number as a substring. 289 contains 89 - a prime number as a substring.

MATHEMATICA

mdpsQ[n_]:=Module[{idn=IntegerDigits[n]}, Or@@PrimeQ[Flatten[ Table[ FromDigits/@ Partition[idn, i, 1], {i, 2, Length[idn]-1}]]]]; Select[ Range[ 100]^2, mdpsQ] (* Harvey P. Dale, Feb 28 2013 *)

CROSSREFS

Sequence in context: A151713 A224667 A118781 * A023108 A092231 A188247

Adjacent sequences:  A119664 A119665 A119666 * A119668 A119669 A119670

KEYWORD

base,nonn

AUTHOR

Tanya Khovanova, Jul 29 2006

EXTENSIONS

More terms from Joshua Zucker, Aug 04 2006

STATUS

approved

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

License Agreements, Terms of Use, Privacy Policy .

Last modified January 24 11:57 EST 2017. Contains 281237 sequences.