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!)
A140461 Numbers in A008364 but not in A038511. 1
1, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97, 101, 103, 107, 109, 113, 127, 131, 137, 139, 149, 151, 157, 163, 167, 173, 179, 181, 191, 193, 197, 199, 211, 223, 227, 229, 233, 239, 241, 251, 257, 263, 269, 271, 277, 281 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..57.

MAPLE

isA008364 := proc(n) if n = 1 then true; else min( op(numtheory[factorset](n)) ); if % > 7 then true; else false; end if; end if; end proc:

isA038511 := proc(n) if n = 1 then false; else min( op(numtheory[factorset](n)) ); if % >= 11 and not isprime(n) then true; else false; end if; end if; end proc:

for n from 1 to 300 do if isA008364(n) and not isA038511(n) then printf("%d, ", n) ; end if; end do: # R. J. Mathar, Apr 25 2010

PROG

(PARI) a(n)=if(n==1, 1, prime(n+3)) \\ Charles R Greathouse IV, Aug 26 2011

CROSSREFS

Sequence in context: A322273 A096489 A008364 * A120533 A226108 A273906

Adjacent sequences:  A140458 A140459 A140460 * A140462 A140463 A140464

KEYWORD

nonn,easy

AUTHOR

Juri-Stepan Gerasimov, Jul 22 2008

EXTENSIONS

Entries checked by R. J. Mathar, Apr 25 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
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified July 23 12:19 EDT 2021. Contains 346259 sequences. (Running on oeis4.)