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!)
A162658 Primes such that the sum of its smallest and largest decimal digits is an odd prime. 1
23, 29, 41, 47, 61, 67, 83, 103, 107, 163, 211, 223, 229, 233, 241, 269, 293, 307, 383, 421, 431, 433, 443, 449, 457, 461, 467, 479, 491, 499, 503, 509, 523, 547, 587, 607, 613, 631, 641, 661, 677, 701, 829, 853, 857, 863, 883, 929, 947 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..49.

EXAMPLE

947 is a prime in which the sum of the smallest digit (4) and the largest digit (9) is an odd prime (13).

CROSSREFS

A046704, A070027, A086244, A088136, A091939, A109981

Sequence in context: A094383 A166565 A050207 * A303009 A227757 A227756

Adjacent sequences:  A162655 A162656 A162657 * A162659 A162660 A162661

KEYWORD

nonn,base

AUTHOR

Parthasarathy Nambi, Jul 09 2009

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 June 23 07:38 EDT 2021. Contains 345395 sequences. (Running on oeis4.)