login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A167737 Primes that becomes a square when prefixed with a 4. 7
41, 761, 23801, 31649, 39569, 63761, 1100921, 1951529, 2497361, 2810849, 3046721, 3678881, 4715969, 4796249, 5118089, 5198729, 5441081, 5846441, 5927729, 6009089, 6498761, 6662561, 6908801, 7238129, 7983329, 8149721, 8483369, 8734361, 9744809, 9829481 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..30.

MATHEMATICA

Select[Prime[Range[10^4]], IntegerQ[Sqrt[FromDigits[Join[{4}, IntegerDigits[#]]]]]&] (* G. C. Greubel, Jun 23 2016 *)

CROSSREFS

Cf. A167734, A167735, A167736, A167738, A167739, A167740, A167741.

Sequence in context: A221790 A299552 A246642 * A268993 A125551 A087856

Adjacent sequences:  A167734 A167735 A167736 * A167738 A167739 A167740

KEYWORD

base,nonn

AUTHOR

Claudio Meller, Nov 10 2009

EXTENSIONS

More terms from Michel Marcus, Aug 05 2013

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
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified August 3 01:36 EDT 2021. Contains 346429 sequences. (Running on oeis4.)