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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 * A253021 A039480 A023688

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

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Last modified October 23 01:49 EDT 2020. Contains 337962 sequences. (Running on oeis4.)