A062375 Euler phi(n) / Carmichael lambda(n) = 6.

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

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, A062373, A062374, A062376, 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