

A241003


Numbers n such that antiphi(n) = antiphi(n+1).


0



2, 8, 14, 20, 27, 32, 284, 297, 362, 717, 842, 1322, 1377, 1725, 1802, 1917, 1982, 2222, 2637, 3410, 4094, 4149, 4850, 5288, 5642, 5654, 5660, 5690, 5750, 5937, 5949, 6237, 7017, 7245, 7377, 7490, 8097, 8217, 8277, 8462, 8774, 9117, 9542, 9897, 10034, 11409, 11810
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OFFSET

1,1


COMMENTS

Like A001274 but using antiphi, as defined in A066452, instead of phi, per A000010.


LINKS

Table of n, a(n) for n=1..47.


EXAMPLE

antiphi(2) = antiphi(3) = 1.
antiphi(8) = antiphi(9) = 4.
antiphi(14) = antiphi(15) = 7. Etc.


MAPLE

for n from 1 do
if A066452(n) = A066452(n+1) then
printf("%d, \n", n);
end if;
end do: # R. J. Mathar, Aug 07 2014


CROSSREFS

Cf. A000010, A001274, A066418, A066452.
Sequence in context: A016933 A294960 A101959 * A133229 A161330 A046940
Adjacent sequences: A241000 A241001 A241002 * A241004 A241005 A241006


KEYWORD

nonn


AUTHOR

Paolo P. Lava, Aug 07 2014


STATUS

approved



