The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A374277

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A374277

Numbers k divisible by exactly one of the prime factors of 30.
(history; published version)

#28 by Michael De Vlieger at Fri Jul 26 15:17:25 EDT 2024

STATUS

proposed

approved

#27 by Amiram Eldar at Fri Jul 26 15:12:32 EDT 2024

STATUS

editing

proposed

Discussion

Fri Jul 26

15:17

Michael De Vlieger: Thanks Amiram!

#26 by Amiram Eldar at Fri Jul 26 15:12:20 EDT 2024

PROG

(PARI) is(k) = isprime(gcd(k, 30)); \\ Amiram Eldar, Jul 26 2024

#25 by Amiram Eldar at Fri Jul 26 15:11:16 EDT 2024

COMMENTS

The asymptotic density of this sequence is 7/15. - Amiram Eldar, Jul 26 2024

LINKS

<a href="/index/Rec#order_15">Index entries for linear recurrences with constant coefficients</a>, signature (1,0,0,0,0,0,0,0,0,0,0,0,0,1,-1).

STATUS

approved

editing

#24 by OEIS Server at Fri Jul 26 12:46:19 EDT 2024

LINKS

Michael De Vlieger, <a href="/A374277/b374277_1.txt">Table of n, a(n) for n = 1..10000</a>

#23 by N. J. A. Sloane at Fri Jul 26 12:46:19 EDT 2024

STATUS

proposed

approved

Discussion

Fri Jul 26

12:46

OEIS Server: Installed first b-file as b374277.txt.

#22 by Michael De Vlieger at Fri Jul 26 10:50:54 EDT 2024

STATUS

editing

proposed

#21 by Michael De Vlieger at Fri Jul 26 10:50:15 EDT 2024

CROSSREFS

Cf. A047228, A051037, A306044, A374284.

STATUS

proposed

editing

#20 by Michael De Vlieger at Fri Jul 26 10:07:29 EDT 2024

STATUS

editing

proposed

#19 by Michael De Vlieger at Fri Jul 26 10:07:27 EDT 2024

CROSSREFS

Cf. A047228, A051037, A306044, A374284.

STATUS

proposed

editing