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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A169798 a(n) = smallest prime number > a(n-1) that contains the n-th composite number as a substring. 6
41, 61, 83, 89, 101, 127, 149, 151, 163, 181, 1201, 1213, 1223, 1249, 1259, 2267, 2273, 2281, 2309, 3203, 3301, 3343, 3359, 3361, 3389, 3391, 3407, 4201, 4409, 4451, 4463, 4481, 4493, 4507, 4513, 4523, 4547, 5501, 5563, 5573, 5581, 6007, 6203, 6263, 6421 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Zak Seidov, Table of n,a(n) for n=1..1000

CROSSREFS

Cf. A144565.

Cf. A177981, A177982. [From Reinhard Zumkeller, May 16 2010]

Sequence in context: A067832 A126242 A178057 * A110411 A145022 A154763

Adjacent sequences:  A169795 A169796 A169797 * A169799 A169800 A169801

KEYWORD

nonn,base

AUTHOR

N. J. A. Sloane, May 15 2010

EXTENSIONS

Corrected and extended by Zak Seidov and D. S. McNeil, May 16 2010

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 March 28 07:54 EDT 2017. Contains 284182 sequences.