Location via proxy:   [ UP ]  
[Report a bug]   [Manage cookies]                

Revision History for A084984

(Bold, blue-underlined text is an addition; faded, red-underlined text is a deletion.)

Showing entries 1-10 | older changes
Numbers containing no prime digits.
(history; published version)
#62 by Alois P. Heinz at Sat Aug 24 17:20:47 EDT 2024
STATUS

reviewed

approved

#61 by Kevin Ryde at Sat Aug 24 17:10:17 EDT 2024
STATUS

proposed

reviewed

#60 by Jason Yuen at Sat Aug 24 15:56:11 EDT 2024
STATUS

editing

proposed

#59 by Jason Yuen at Sat Aug 24 15:56:01 EDT 2024
FORMULA

a(n) <= 4*10^(log_6(n-1)-log_6(2)) = 1.641372618*10^(log_6(n-1) , ), equality holds for n=2*6^k+1, k>=0.

a(n) > 2*10^(log_6(n-1)-log_6(2)) = 0.820686309*10^(log_6(n-1)).

STATUS

approved

editing

#58 by Michel Marcus at Thu Feb 15 01:55:42 EST 2024
STATUS

reviewed

approved

#57 by Joerg Arndt at Thu Feb 15 01:51:14 EST 2024
STATUS

proposed

reviewed

#56 by Amiram Eldar at Thu Feb 15 01:11:21 EST 2024
STATUS

editing

proposed

#55 by Amiram Eldar at Thu Feb 15 00:29:32 EST 2024
CROSSREFS

Cf. A046034, A034844 (primes), A118950, A193238.

#54 by Amiram Eldar at Thu Feb 15 00:28:40 EST 2024
COMMENTS

Complement of A118950. - Reinhard Zumkeller, Jul 19 2011

FORMULA

A193238(a(n)) = 0; complement of A118950. - Reinhard Zumkeller, Jul 19 2011

#53 by Amiram Eldar at Thu Feb 15 00:27:59 EST 2024
COMMENTS

A193238(a(n)) = 0; complement of A118950. - Reinhard Zumkeller, Jul 19 2011

FORMULA

A193238(a(n)) = 0; complement of A118950. - Reinhard Zumkeller, Jul 19 2011