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A094387 Numbers n such that gcd(n, A000120(n))=1. 5
1, 2, 3, 4, 5, 7, 8, 9, 11, 13, 14, 15, 16, 17, 19, 22, 23, 25, 26, 27, 28, 29, 31, 32, 33, 35, 37, 38, 39, 41, 43, 44, 45, 47, 49, 50, 51, 52, 53, 56, 57, 59, 61, 62, 64, 65, 67, 70, 71, 73, 74, 75, 76, 77, 79, 82, 83, 85, 87, 88, 89, 91, 93, 94, 95, 97, 98, 99, 100, 101, 103 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

This sequence has density 6/pi^2 (Olivier).

REFERENCES

J.-P. Allouche & J. Shallit, Automatic sequences, Cambridge University Press, 2003, p 117

LINKS

Table of n, a(n) for n=1..71.

PROG

(PARI) lista(nn) = {for (n=1, nn, if (gcd(n, norml2(binary(n))) == 1, print1(n, ", ")); ); } \\ Michel Marcus, May 25 2013

CROSSREFS

Sequence in context: A319272 A141819 A097904 * A050744 A078448 A212289

Adjacent sequences:  A094384 A094385 A094386 * A094388 A094389 A094390

KEYWORD

nonn

AUTHOR

Benoit Cloitre, Jun 08 2004

STATUS

approved

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Last modified February 25 23:44 EST 2020. Contains 332270 sequences. (Running on oeis4.)