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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A064257 Values of m such that N=(am+1)(bm+1)(cm+1) is a Carmichael number, where a,b,c = 1,2,41. 0
306, 7686, 9900, 24168, 32778, 68448, 86160, 107070, 112236, 148398, 172998, 207930, 217770, 221706 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

COMMENTS

am+1, bm+1, cm+1 are primes and am | (N-1), bm | (N-1), cm |(N-1)

REFERENCES

Harvey Dubner (harvey(AT)dubner.com), personal communication, Jun 27 2001.

LINKS

Table of n, a(n) for n=0..13.

CROSSREFS

Sequence in context: A206679 A172966 A223073 * A221854 A221724 A023908

Adjacent sequences:  A064254 A064255 A064256 * A064258 A064259 A064260

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Sep 23 2001

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 April 22 10:17 EDT 2019. Contains 322330 sequences. (Running on oeis4.)