The OEIS is supported by the many generous donors to the OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A062375 Euler phi(n) / Carmichael lambda(n) = 6. 3
 63, 91, 117, 126, 133, 171, 182, 189, 217, 234, 247, 259, 266, 279, 301, 333, 342, 351, 378, 387, 403, 427, 434, 441, 469, 494, 511, 518, 549, 553, 558, 559, 567, 589, 602, 603, 637, 657, 666, 679, 702, 711, 721, 763, 774, 806, 817, 837, 854, 871, 873, 882 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Solutions to A000010(n)/A002322(n)=6. LINKS R. J. Mathar, Table of n, a(n) for n = 1..10000 PROG (PARI) {cmf(f)=if( ((f[1]==2)&&(f[2]>2)), eulerphi(f[1]^f[2])/2, eulerphi(f[1]^f[2])) } {cl(f)= k=factor(f); l=1; for(x=1, omega(f), l=lcm(l, cmf([k[x, 1], k[x, 2]]))); l } {A062375(n)=eulerphi(n)/cl(n)} for(x=1, 10001, if(A062375(x)==6, print1(x, ", "))) CROSSREFS Cf. A000010, A002322, A034380, A033948, A033948, A062373-A062377. Sequence in context: A039363 A043966 A193417 * A343025 A343003 A253021 Adjacent sequences:  A062372 A062373 A062374 * A062376 A062377 A062378 KEYWORD easy,nonn AUTHOR Vladeta Jovovic, Jun 17 2001 EXTENSIONS More terms from Randall L. Rathbun, Jan 12 2002 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.

Last modified January 26 13:09 EST 2022. Contains 350598 sequences. (Running on oeis4.)