The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A371706 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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A371706

a(n) is the least k > 0 such that n^k contains the digit 1.
(history; published version)

#27 by N. J. A. Sloane at Mon Apr 08 18:46:11 EDT 2024

STATUS

proposed

approved

#26 by Michel Marcus at Mon Apr 08 17:00:42 EDT 2024

STATUS

editing

proposed

#25 by Michel Marcus at Mon Apr 08 17:00:26 EDT 2024

COMMENTS

a(n) <= 8 for n <= 10^13, and a(n) <= 17 for all n; see A275533. _- _Michael S. Branicky_, Apr 08 2024

STATUS

proposed

editing

#24 by Michael S. Branicky at Mon Apr 08 16:54:07 EDT 2024

STATUS

editing

proposed

#23 by Michael S. Branicky at Mon Apr 08 16:54:05 EDT 2024

COMMENTS

a(n) <= 8 for n <= 10^13, and a(n) <= 16 17 for all n; see A275533. Michael S. Branicky, Apr 08 2024

STATUS

proposed

editing

#22 by Michael S. Branicky at Mon Apr 08 16:40:13 EDT 2024

STATUS

editing

proposed

#21 by Michael S. Branicky at Mon Apr 08 16:40:11 EDT 2024

COMMENTS

a(n) <= 8 for n <= 10^13, and a(n) <= 16 for all n; see A275533. Michael S. Branicky, Apr 08 2024

STATUS

approved

editing

#20 by N. J. A. Sloane at Sun Apr 07 11:26:20 EDT 2024

STATUS

proposed

approved

#19 by Stefano Spezia at Sat Apr 06 13:23:01 EDT 2024

STATUS

editing

proposed

Discussion

Sat Apr 06

13:23

Stefano Spezia: Just a blank

#18 by Stefano Spezia at Sat Apr 06 13:22:54 EDT 2024

COMMENTS

a(n) <= 8 for n <= 10^11. Moreover the only n <= 10^11 with a(n) = 8 are 2975 * 10^j. - Robert Israel, Apr 05 2024

STATUS

proposed

editing