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A050498 Arithmetic progressions of at least 4 terms with common difference 6 having the same value of phi(x) start at these numbers. 2
72, 216, 76326, 101526, 116646, 146886, 298086, 369366, 624966, 1375926, 1532166, 1558086, 1598406, 1750326, 1789206, 1866246, 1991526, 2516406, 2540886, 2620806, 2681286, 2827446, 3151446, 3196806, 3236406, 3489126 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Jud McCranie, Table of n, a(n) for n = 1..10000

EXAMPLE

phi(72)=pi(78)=phi(84)=phi(90)=24, so 72 is in the sequence.

CROSSREFS

Cf. A000010, A039670.

Sequence in context: A235179 A204492 A204485 * A077535 A064716 A073412

Adjacent sequences:  A050495 A050496 A050497 * A050499 A050500 A050501

KEYWORD

nonn

AUTHOR

Jud McCranie, Dec 27 1999

STATUS

approved

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Last modified June 24 21:16 EDT 2019. Contains 324337 sequences. (Running on oeis4.)