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Revision History for A282895

(Underlined text is an addition; strikethrough text is a deletion.)

Showing entries 1-10 | older changes
A282895 Numbers k such that (11*10^k + 91)/3 is prime.
(history; published version)
#17 by Alois P. Heinz at Sat May 25 14:16:51 EDT 2024
STATUS

reviewed

approved

#16 by Hugo Pfoertner at Sat May 25 14:05:21 EDT 2024
STATUS

proposed

reviewed

#15 by Jon E. Schoenfield at Sat May 25 14:04:19 EDT 2024
STATUS

editing

proposed

#14 by Jon E. Schoenfield at Sat May 25 14:04:10 EDT 2024
COMMENTS

For k> > 1, numbers k such that the digit 3 followed by k-2 occurrences of the digit 6 followed by the digits 97 is prime (see Example section).

LINKS

Makoto Kamada, <a href="https://stdkmd.net/nrr/prime/primedifficultyprime_difficulty.txt">Search for 36w97.</</a>>.

EXAMPLE

Initial terms and primes associated primes:

STATUS

approved

editing

#13 by Andrew Howroyd at Wed Jul 12 13:00:29 EDT 2023
STATUS

reviewed

approved

#12 by Michel Marcus at Wed Jul 12 12:44:36 EDT 2023
STATUS

proposed

reviewed

#11 by Robert Price at Wed Jul 12 12:34:58 EDT 2023
STATUS

editing

proposed

#10 by Robert Price at Wed Jul 12 12:34:44 EDT 2023
DATA

1, 2, 3, 4, 5, 7, 9, 15, 27, 29, 39, 62, 77, 106, 114, 357, 555, 962, 1013, 2372, 8235, 16047, 82323, 294308

COMMENTS

a(2425) > 23*10^5.

EXTENSIONS

a(24) from Robert Price, Jul 12 2023

STATUS

approved

editing

#9 by Charles R Greathouse IV at Thu Jan 17 13:44:09 EST 2019
LINKS

Makoto Kamada, <a href="httphttps://stdkmd.comnet/nrr">Factorization of near-repdigit-related numbers</a>.

Makoto Kamada, <a href="httphttps://stdkmd.comnet/nrr/prime/primedifficulty.txt">Search for 36w97.</a>

Discussion
Thu Jan 17 13:44 
OEIS Server: https://oeis.org/edit/global/2791
#8 by Bruno Berselli at Fri Sep 28 02:53:22 EDT 2018
STATUS

reviewed

approved

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Last modified August 19 06:58 EDT 2024. Contains 375284 sequences. (Running on oeis4.)