The On-Line Encyclopedia of Integer Sequences (OEIS)

Revisions by Zhao Hui Du (See also Zhao Hui Du's wiki page)

(Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
Showing entries 1-10 | older changes

A374923

a(n) is the least k such that 2^k begins with n!.
(history; published version)

#38 by Zhao Hui Du at Wed Oct 30 20:57:15 EDT 2024

STATUS

editing

proposed

#37 by Zhao Hui Du at Wed Oct 30 20:57:07 EDT 2024

LINKS

Zhao Hui Du, <a href="/A374923/b374923_1.txt">Table of n, a(n) for n = 0..100</a>

STATUS

approved

editing

A374922

a(n) is the least k such that 3^k begins with n!.
(history; published version)

#39 by Zhao Hui Du at Wed Oct 30 20:56:38 EDT 2024

STATUS

editing

proposed

#38 by Zhao Hui Du at Wed Oct 30 20:56:03 EDT 2024

LINKS

Zhao Hui Du, <a href="/A374922/b374922_1.txt">Table of n, a(n) for n = 0..100</a>

STATUS

approved

editing

A152561

Smallest m such that 2^m begins with a 1 and n 0's.
(history; published version)

#23 by Zhao Hui Du at Thu Oct 03 19:56:18 EDT 2024

STATUS

editing

proposed

#22 by Zhao Hui Du at Thu Oct 03 19:56:02 EDT 2024

LINKS

Zhao Hui Du, <a href="/A152561/b152561_1.txt">Table of n, a(n) for n = 0..500</a>

#21 by Zhao Hui Du at Thu Oct 03 18:57:06 EDT 2024

EXTENSIONS

a(18) and above from Zhao Hui Du, Oct 03 2024

#20 by Zhao Hui Du at Thu Oct 03 18:56:29 EDT 2024

DATA

0, 10, 196, 2136, 15437, 70777, 325147, 6432163, 198096465, 15042141867, 76590952427, 82361153417, 578451474249, 6198243909905, 410654730169643, 2178891522315645, 11458333085072746, 112404439328411815, 2539468772213180761, 4415969241540963378, 218809557168391974468

STATUS

approved

editing

A374922

a(n) is the least k such that 3^k begins with n!.
(history; published version)

#34 by Zhao Hui Du at Thu Oct 03 00:08:47 EDT 2024

STATUS

editing

proposed

#33 by Zhao Hui Du at Thu Oct 03 00:08:25 EDT 2024

DATA

0, 0, 3, 8, 5, 805, 1689, 12317, 197209, 520852, 4493819, 16769097, 2053077332, 1110380591, 39230711849, 516641987008, 62653098988435, 398166000236882, 7896283077809532, 99956735615338266, 5161719458617927763, 63295038588725505792, 659220983938327840981

EXTENSIONS

a(13) above from Zhao Hui Du, Oct 03 2024

STATUS

proposed

editing